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8a7c4efd3c
Deprecation of Python versions below 3.6 gives opportunity to unify the build and install requirements for OpenZFS packages. The minimal supported Python version is 3.6 as this is the most recent Python package CentOS/RHEL 7 users can get. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Rich Ercolani <rincebrain@gmail.com> Reviewed-by: John Kennedy <john.kennedy@delphix.com> Signed-off-by: szubersk <szuberskidamian@gmail.com> Closes #12925
685 lines
22 KiB
Plaintext
Executable File
685 lines
22 KiB
Plaintext
Executable File
#!/usr/bin/env @PYTHON_SHEBANG@
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#
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# Print out statistics for all cached dmu buffers. This information
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# is available through the dbufs kstat and may be post-processed as
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# needed by the script.
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#
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# CDDL HEADER START
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#
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# The contents of this file are subject to the terms of the
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# Common Development and Distribution License, Version 1.0 only
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# (the "License"). You may not use this file except in compliance
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# with the License.
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#
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# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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# or http://www.opensolaris.org/os/licensing.
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# See the License for the specific language governing permissions
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# and limitations under the License.
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#
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# When distributing Covered Code, include this CDDL HEADER in each
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# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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# If applicable, add the following below this CDDL HEADER, with the
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# fields enclosed by brackets "[]" replaced with your own identifying
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# information: Portions Copyright [yyyy] [name of copyright owner]
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#
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# CDDL HEADER END
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#
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# Copyright (C) 2013 Lawrence Livermore National Security, LLC.
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# Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
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#
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# This script must remain compatible with and Python 3.6+.
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#
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import sys
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import getopt
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import errno
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import re
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bhdr = ["pool", "objset", "object", "level", "blkid", "offset", "dbsize"]
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bxhdr = ["pool", "objset", "object", "level", "blkid", "offset", "dbsize",
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"meta", "state", "dbholds", "dbc", "list", "atype", "flags",
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"count", "asize", "access", "mru", "gmru", "mfu", "gmfu", "l2",
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"l2_dattr", "l2_asize", "l2_comp", "aholds", "dtype", "btype",
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"data_bs", "meta_bs", "bsize", "lvls", "dholds", "blocks", "dsize"]
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bincompat = ["cached", "direct", "indirect", "bonus", "spill"]
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dhdr = ["pool", "objset", "object", "dtype", "cached"]
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dxhdr = ["pool", "objset", "object", "dtype", "btype", "data_bs", "meta_bs",
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"bsize", "lvls", "dholds", "blocks", "dsize", "cached", "direct",
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"indirect", "bonus", "spill"]
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dincompat = ["level", "blkid", "offset", "dbsize", "meta", "state", "dbholds",
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"dbc", "list", "atype", "flags", "count", "asize", "access",
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"mru", "gmru", "mfu", "gmfu", "l2", "l2_dattr", "l2_asize",
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"l2_comp", "aholds"]
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thdr = ["pool", "objset", "dtype", "cached"]
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txhdr = ["pool", "objset", "dtype", "cached", "direct", "indirect",
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"bonus", "spill"]
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tincompat = ["object", "level", "blkid", "offset", "dbsize", "meta", "state",
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"dbc", "dbholds", "list", "atype", "flags", "count", "asize",
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"access", "mru", "gmru", "mfu", "gmfu", "l2", "l2_dattr",
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"l2_asize", "l2_comp", "aholds", "btype", "data_bs", "meta_bs",
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"bsize", "lvls", "dholds", "blocks", "dsize"]
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cols = {
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# hdr: [size, scale, description]
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"pool": [15, -1, "pool name"],
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"objset": [6, -1, "dataset identification number"],
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"object": [10, -1, "object number"],
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"level": [5, -1, "indirection level of buffer"],
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"blkid": [8, -1, "block number of buffer"],
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"offset": [12, 1024, "offset in object of buffer"],
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"dbsize": [7, 1024, "size of buffer"],
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"meta": [4, -1, "is this buffer metadata?"],
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"state": [5, -1, "state of buffer (read, cached, etc)"],
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"dbholds": [7, 1000, "number of holds on buffer"],
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"dbc": [3, -1, "in dbuf cache"],
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"list": [4, -1, "which ARC list contains this buffer"],
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"atype": [7, -1, "ARC header type (data or metadata)"],
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"flags": [9, -1, "ARC read flags"],
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"count": [5, -1, "ARC data count"],
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"asize": [7, 1024, "size of this ARC buffer"],
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"access": [10, -1, "time this ARC buffer was last accessed"],
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"mru": [5, 1000, "hits while on the ARC's MRU list"],
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"gmru": [5, 1000, "hits while on the ARC's MRU ghost list"],
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"mfu": [5, 1000, "hits while on the ARC's MFU list"],
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"gmfu": [5, 1000, "hits while on the ARC's MFU ghost list"],
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"l2": [5, 1000, "hits while on the L2ARC"],
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"l2_dattr": [8, -1, "L2ARC disk address/offset"],
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"l2_asize": [8, 1024, "L2ARC alloc'd size (depending on compression)"],
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"l2_comp": [21, -1, "L2ARC compression algorithm for buffer"],
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"aholds": [6, 1000, "number of holds on this ARC buffer"],
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"dtype": [27, -1, "dnode type"],
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"btype": [27, -1, "bonus buffer type"],
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"data_bs": [7, 1024, "data block size"],
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"meta_bs": [7, 1024, "metadata block size"],
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"bsize": [6, 1024, "bonus buffer size"],
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"lvls": [6, -1, "number of indirection levels"],
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"dholds": [6, 1000, "number of holds on dnode"],
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"blocks": [8, 1000, "number of allocated blocks"],
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"dsize": [12, 1024, "size of dnode"],
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"cached": [6, 1024, "bytes cached for all blocks"],
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"direct": [6, 1024, "bytes cached for direct blocks"],
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"indirect": [8, 1024, "bytes cached for indirect blocks"],
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"bonus": [5, 1024, "bytes cached for bonus buffer"],
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"spill": [5, 1024, "bytes cached for spill block"],
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}
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hdr = None
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xhdr = None
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sep = " " # Default separator is 2 spaces
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cmd = ("Usage: dbufstat [-bdhnrtvx] [-i file] [-f fields] [-o file] "
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"[-s string] [-F filter]\n")
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raw = 0
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if sys.platform.startswith("freebsd"):
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import io
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# Requires py-sysctl on FreeBSD
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import sysctl
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def default_ifile():
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dbufs = sysctl.filter("kstat.zfs.misc.dbufs")[0].value
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sys.stdin = io.StringIO(dbufs)
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return "-"
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elif sys.platform.startswith("linux"):
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def default_ifile():
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return "/proc/spl/kstat/zfs/dbufs"
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def print_incompat_helper(incompat):
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cnt = 0
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for key in sorted(incompat):
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if cnt == 0:
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sys.stderr.write("\t")
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elif cnt > 8:
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sys.stderr.write(",\n\t")
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cnt = 0
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else:
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sys.stderr.write(", ")
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sys.stderr.write("%s" % key)
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cnt += 1
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sys.stderr.write("\n\n")
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def detailed_usage():
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sys.stderr.write("%s\n" % cmd)
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sys.stderr.write("Field definitions incompatible with '-b' option:\n")
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print_incompat_helper(bincompat)
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sys.stderr.write("Field definitions incompatible with '-d' option:\n")
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print_incompat_helper(dincompat)
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sys.stderr.write("Field definitions incompatible with '-t' option:\n")
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print_incompat_helper(tincompat)
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sys.stderr.write("Field definitions are as follows:\n")
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for key in sorted(cols.keys()):
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sys.stderr.write("%11s : %s\n" % (key, cols[key][2]))
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sys.stderr.write("\n")
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sys.exit(0)
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def usage():
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sys.stderr.write("%s\n" % cmd)
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sys.stderr.write("\t -b : Print table of information for each dbuf\n")
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sys.stderr.write("\t -d : Print table of information for each dnode\n")
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sys.stderr.write("\t -h : Print this help message\n")
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sys.stderr.write("\t -n : Exclude header from output\n")
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sys.stderr.write("\t -r : Print raw values\n")
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sys.stderr.write("\t -t : Print table of information for each dnode type"
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"\n")
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sys.stderr.write("\t -v : List all possible field headers and definitions"
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"\n")
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sys.stderr.write("\t -x : Print extended stats\n")
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sys.stderr.write("\t -i : Redirect input from the specified file\n")
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sys.stderr.write("\t -f : Specify specific fields to print (see -v)\n")
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sys.stderr.write("\t -o : Redirect output to the specified file\n")
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sys.stderr.write("\t -s : Override default field separator with custom "
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"character or string\n")
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sys.stderr.write("\t -F : Filter output by value or regex\n")
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sys.stderr.write("\nExamples:\n")
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sys.stderr.write("\tdbufstat -d -o /tmp/d.log\n")
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sys.stderr.write("\tdbufstat -t -s \",\" -o /tmp/t.log\n")
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sys.stderr.write("\tdbufstat -v\n")
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sys.stderr.write("\tdbufstat -d -f pool,object,objset,dsize,cached\n")
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sys.stderr.write("\tdbufstat -bx -F dbc=1,objset=54,pool=testpool\n")
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sys.stderr.write("\n")
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sys.exit(1)
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def prettynum(sz, scale, num=0):
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global raw
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suffix = [' ', 'K', 'M', 'G', 'T', 'P', 'E', 'Z']
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index = 0
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save = 0
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if raw or scale == -1:
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return "%*s" % (sz, num)
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# Rounding error, return 0
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elif 0 < num < 1:
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num = 0
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while num > scale and index < 5:
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save = num
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num = num / scale
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index += 1
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if index == 0:
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return "%*d" % (sz, num)
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if (save / scale) < 10:
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return "%*.1f%s" % (sz - 1, num, suffix[index])
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else:
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return "%*d%s" % (sz - 1, num, suffix[index])
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def print_values(v):
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global hdr
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global sep
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try:
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for col in hdr:
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sys.stdout.write("%s%s" % (
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prettynum(cols[col][0], cols[col][1], v[col]), sep))
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sys.stdout.write("\n")
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except IOError as e:
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if e.errno == errno.EPIPE:
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sys.exit(1)
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def print_header():
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global hdr
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global sep
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try:
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for col in hdr:
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sys.stdout.write("%*s%s" % (cols[col][0], col, sep))
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sys.stdout.write("\n")
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except IOError as e:
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if e.errno == errno.EPIPE:
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sys.exit(1)
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def get_typestring(t):
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ot_strings = [
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"DMU_OT_NONE",
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# general:
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"DMU_OT_OBJECT_DIRECTORY",
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"DMU_OT_OBJECT_ARRAY",
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"DMU_OT_PACKED_NVLIST",
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"DMU_OT_PACKED_NVLIST_SIZE",
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"DMU_OT_BPOBJ",
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"DMU_OT_BPOBJ_HDR",
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# spa:
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"DMU_OT_SPACE_MAP_HEADER",
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"DMU_OT_SPACE_MAP",
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# zil:
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"DMU_OT_INTENT_LOG",
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# dmu:
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"DMU_OT_DNODE",
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"DMU_OT_OBJSET",
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# dsl:
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"DMU_OT_DSL_DIR",
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"DMU_OT_DSL_DIR_CHILD_MAP",
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"DMU_OT_DSL_DS_SNAP_MAP",
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"DMU_OT_DSL_PROPS",
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"DMU_OT_DSL_DATASET",
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# zpl:
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"DMU_OT_ZNODE",
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"DMU_OT_OLDACL",
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"DMU_OT_PLAIN_FILE_CONTENTS",
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"DMU_OT_DIRECTORY_CONTENTS",
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"DMU_OT_MASTER_NODE",
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"DMU_OT_UNLINKED_SET",
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# zvol:
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"DMU_OT_ZVOL",
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"DMU_OT_ZVOL_PROP",
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# other; for testing only!
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"DMU_OT_PLAIN_OTHER",
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"DMU_OT_UINT64_OTHER",
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"DMU_OT_ZAP_OTHER",
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# new object types:
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"DMU_OT_ERROR_LOG",
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"DMU_OT_SPA_HISTORY",
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"DMU_OT_SPA_HISTORY_OFFSETS",
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"DMU_OT_POOL_PROPS",
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"DMU_OT_DSL_PERMS",
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"DMU_OT_ACL",
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"DMU_OT_SYSACL",
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"DMU_OT_FUID",
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"DMU_OT_FUID_SIZE",
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"DMU_OT_NEXT_CLONES",
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"DMU_OT_SCAN_QUEUE",
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"DMU_OT_USERGROUP_USED",
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"DMU_OT_USERGROUP_QUOTA",
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"DMU_OT_USERREFS",
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"DMU_OT_DDT_ZAP",
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"DMU_OT_DDT_STATS",
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"DMU_OT_SA",
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"DMU_OT_SA_MASTER_NODE",
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"DMU_OT_SA_ATTR_REGISTRATION",
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"DMU_OT_SA_ATTR_LAYOUTS",
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"DMU_OT_SCAN_XLATE",
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"DMU_OT_DEDUP",
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"DMU_OT_DEADLIST",
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"DMU_OT_DEADLIST_HDR",
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"DMU_OT_DSL_CLONES",
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"DMU_OT_BPOBJ_SUBOBJ"]
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otn_strings = {
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0x80: "DMU_OTN_UINT8_DATA",
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0xc0: "DMU_OTN_UINT8_METADATA",
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0x81: "DMU_OTN_UINT16_DATA",
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0xc1: "DMU_OTN_UINT16_METADATA",
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0x82: "DMU_OTN_UINT32_DATA",
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0xc2: "DMU_OTN_UINT32_METADATA",
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0x83: "DMU_OTN_UINT64_DATA",
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0xc3: "DMU_OTN_UINT64_METADATA",
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0x84: "DMU_OTN_ZAP_DATA",
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0xc4: "DMU_OTN_ZAP_METADATA",
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0xa0: "DMU_OTN_UINT8_ENC_DATA",
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0xe0: "DMU_OTN_UINT8_ENC_METADATA",
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0xa1: "DMU_OTN_UINT16_ENC_DATA",
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0xe1: "DMU_OTN_UINT16_ENC_METADATA",
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0xa2: "DMU_OTN_UINT32_ENC_DATA",
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0xe2: "DMU_OTN_UINT32_ENC_METADATA",
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0xa3: "DMU_OTN_UINT64_ENC_DATA",
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0xe3: "DMU_OTN_UINT64_ENC_METADATA",
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0xa4: "DMU_OTN_ZAP_ENC_DATA",
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0xe4: "DMU_OTN_ZAP_ENC_METADATA"}
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# If "-rr" option is used, don't convert to string representation
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if raw > 1:
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return "%i" % t
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try:
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if t < len(ot_strings):
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return ot_strings[t]
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else:
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return otn_strings[t]
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except (IndexError, KeyError):
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return "(UNKNOWN)"
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def get_compstring(c):
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comp_strings = ["ZIO_COMPRESS_INHERIT", "ZIO_COMPRESS_ON",
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"ZIO_COMPRESS_OFF", "ZIO_COMPRESS_LZJB",
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"ZIO_COMPRESS_EMPTY", "ZIO_COMPRESS_GZIP_1",
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"ZIO_COMPRESS_GZIP_2", "ZIO_COMPRESS_GZIP_3",
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"ZIO_COMPRESS_GZIP_4", "ZIO_COMPRESS_GZIP_5",
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"ZIO_COMPRESS_GZIP_6", "ZIO_COMPRESS_GZIP_7",
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"ZIO_COMPRESS_GZIP_8", "ZIO_COMPRESS_GZIP_9",
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"ZIO_COMPRESS_ZLE", "ZIO_COMPRESS_LZ4",
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"ZIO_COMPRESS_ZSTD", "ZIO_COMPRESS_FUNCTION"]
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# If "-rr" option is used, don't convert to string representation
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if raw > 1:
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return "%i" % c
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try:
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return comp_strings[c]
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except IndexError:
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return "%i" % c
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def parse_line(line, labels):
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global hdr
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new = dict()
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val = None
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for col in hdr:
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# These are "special" fields computed in the update_dict
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# function, prevent KeyError exception on labels[col] for these.
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if col not in ['bonus', 'cached', 'direct', 'indirect', 'spill']:
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val = line[labels[col]]
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if col in ['pool', 'flags']:
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new[col] = str(val)
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elif col in ['dtype', 'btype']:
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new[col] = get_typestring(int(val))
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elif col in ['l2_comp']:
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new[col] = get_compstring(int(val))
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else:
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new[col] = int(val)
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return new
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def update_dict(d, k, line, labels):
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pool = line[labels['pool']]
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objset = line[labels['objset']]
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key = line[labels[k]]
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dbsize = int(line[labels['dbsize']])
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blkid = int(line[labels['blkid']])
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level = int(line[labels['level']])
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if pool not in d:
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d[pool] = dict()
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if objset not in d[pool]:
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d[pool][objset] = dict()
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if key not in d[pool][objset]:
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d[pool][objset][key] = parse_line(line, labels)
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d[pool][objset][key]['bonus'] = 0
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d[pool][objset][key]['cached'] = 0
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d[pool][objset][key]['direct'] = 0
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d[pool][objset][key]['indirect'] = 0
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d[pool][objset][key]['spill'] = 0
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d[pool][objset][key]['cached'] += dbsize
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if blkid == -1:
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d[pool][objset][key]['bonus'] += dbsize
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elif blkid == -2:
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d[pool][objset][key]['spill'] += dbsize
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else:
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if level == 0:
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d[pool][objset][key]['direct'] += dbsize
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else:
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d[pool][objset][key]['indirect'] += dbsize
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return d
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def skip_line(vals, filters):
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'''
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Determines if a line should be skipped during printing
|
|
based on a set of filters
|
|
'''
|
|
if len(filters) == 0:
|
|
return False
|
|
|
|
for key in vals:
|
|
if key in filters:
|
|
val = prettynum(cols[key][0], cols[key][1], vals[key]).strip()
|
|
# we want a full match here
|
|
if re.match("(?:" + filters[key] + r")\Z", val) is None:
|
|
return True
|
|
|
|
return False
|
|
|
|
|
|
def print_dict(d, filters, noheader):
|
|
if not noheader:
|
|
print_header()
|
|
for pool in list(d.keys()):
|
|
for objset in list(d[pool].keys()):
|
|
for v in list(d[pool][objset].values()):
|
|
if not skip_line(v, filters):
|
|
print_values(v)
|
|
|
|
|
|
def dnodes_build_dict(filehandle):
|
|
labels = dict()
|
|
dnodes = dict()
|
|
|
|
# First 3 lines are header information, skip the first two
|
|
for i in range(2):
|
|
next(filehandle)
|
|
|
|
# The third line contains the labels and index locations
|
|
for i, v in enumerate(next(filehandle).split()):
|
|
labels[v] = i
|
|
|
|
# The rest of the file is buffer information
|
|
for line in filehandle:
|
|
update_dict(dnodes, 'object', line.split(), labels)
|
|
|
|
return dnodes
|
|
|
|
|
|
def types_build_dict(filehandle):
|
|
labels = dict()
|
|
types = dict()
|
|
|
|
# First 3 lines are header information, skip the first two
|
|
for i in range(2):
|
|
next(filehandle)
|
|
|
|
# The third line contains the labels and index locations
|
|
for i, v in enumerate(next(filehandle).split()):
|
|
labels[v] = i
|
|
|
|
# The rest of the file is buffer information
|
|
for line in filehandle:
|
|
update_dict(types, 'dtype', line.split(), labels)
|
|
|
|
return types
|
|
|
|
|
|
def buffers_print_all(filehandle, filters, noheader):
|
|
labels = dict()
|
|
|
|
# First 3 lines are header information, skip the first two
|
|
for i in range(2):
|
|
next(filehandle)
|
|
|
|
# The third line contains the labels and index locations
|
|
for i, v in enumerate(next(filehandle).split()):
|
|
labels[v] = i
|
|
|
|
if not noheader:
|
|
print_header()
|
|
|
|
# The rest of the file is buffer information
|
|
for line in filehandle:
|
|
vals = parse_line(line.split(), labels)
|
|
if not skip_line(vals, filters):
|
|
print_values(vals)
|
|
|
|
|
|
def main():
|
|
global hdr
|
|
global sep
|
|
global raw
|
|
|
|
desired_cols = None
|
|
bflag = False
|
|
dflag = False
|
|
hflag = False
|
|
ifile = None
|
|
ofile = None
|
|
tflag = False
|
|
vflag = False
|
|
xflag = False
|
|
nflag = False
|
|
filters = dict()
|
|
|
|
try:
|
|
opts, args = getopt.getopt(
|
|
sys.argv[1:],
|
|
"bdf:hi:o:rs:tvxF:n",
|
|
[
|
|
"buffers",
|
|
"dnodes",
|
|
"columns",
|
|
"help",
|
|
"infile",
|
|
"outfile",
|
|
"separator",
|
|
"types",
|
|
"verbose",
|
|
"extended",
|
|
"filter"
|
|
]
|
|
)
|
|
except getopt.error:
|
|
usage()
|
|
opts = None
|
|
|
|
for opt, arg in opts:
|
|
if opt in ('-b', '--buffers'):
|
|
bflag = True
|
|
if opt in ('-d', '--dnodes'):
|
|
dflag = True
|
|
if opt in ('-f', '--columns'):
|
|
desired_cols = arg
|
|
if opt in ('-h', '--help'):
|
|
hflag = True
|
|
if opt in ('-i', '--infile'):
|
|
ifile = arg
|
|
if opt in ('-o', '--outfile'):
|
|
ofile = arg
|
|
if opt in ('-r', '--raw'):
|
|
raw += 1
|
|
if opt in ('-s', '--separator'):
|
|
sep = arg
|
|
if opt in ('-t', '--types'):
|
|
tflag = True
|
|
if opt in ('-v', '--verbose'):
|
|
vflag = True
|
|
if opt in ('-x', '--extended'):
|
|
xflag = True
|
|
if opt in ('-n', '--noheader'):
|
|
nflag = True
|
|
if opt in ('-F', '--filter'):
|
|
fils = [x.strip() for x in arg.split(",")]
|
|
|
|
for fil in fils:
|
|
f = [x.strip() for x in fil.split("=")]
|
|
|
|
if len(f) != 2:
|
|
sys.stderr.write("Invalid filter '%s'.\n" % fil)
|
|
sys.exit(1)
|
|
|
|
if f[0] not in cols:
|
|
sys.stderr.write("Invalid field '%s' in filter.\n" % f[0])
|
|
sys.exit(1)
|
|
|
|
if f[0] in filters:
|
|
sys.stderr.write("Field '%s' specified multiple times in "
|
|
"filter.\n" % f[0])
|
|
sys.exit(1)
|
|
|
|
try:
|
|
re.compile("(?:" + f[1] + r")\Z")
|
|
except re.error:
|
|
sys.stderr.write("Invalid regex for field '%s' in "
|
|
"filter.\n" % f[0])
|
|
sys.exit(1)
|
|
|
|
filters[f[0]] = f[1]
|
|
|
|
if hflag or (xflag and desired_cols):
|
|
usage()
|
|
|
|
if vflag:
|
|
detailed_usage()
|
|
|
|
# Ensure at most only one of b, d, or t flags are set
|
|
if (bflag and dflag) or (bflag and tflag) or (dflag and tflag):
|
|
usage()
|
|
|
|
if bflag:
|
|
hdr = bxhdr if xflag else bhdr
|
|
elif tflag:
|
|
hdr = txhdr if xflag else thdr
|
|
else: # Even if dflag is False, it's the default if none set
|
|
dflag = True
|
|
hdr = dxhdr if xflag else dhdr
|
|
|
|
if desired_cols:
|
|
hdr = desired_cols.split(",")
|
|
|
|
invalid = []
|
|
incompat = []
|
|
for ele in hdr:
|
|
if ele not in cols:
|
|
invalid.append(ele)
|
|
elif ((bflag and bincompat and ele in bincompat) or
|
|
(dflag and dincompat and ele in dincompat) or
|
|
(tflag and tincompat and ele in tincompat)):
|
|
incompat.append(ele)
|
|
|
|
if len(invalid) > 0:
|
|
sys.stderr.write("Invalid column definition! -- %s\n" % invalid)
|
|
usage()
|
|
|
|
if len(incompat) > 0:
|
|
sys.stderr.write("Incompatible field specified! -- %s\n" %
|
|
incompat)
|
|
usage()
|
|
|
|
if ofile:
|
|
try:
|
|
tmp = open(ofile, "w")
|
|
sys.stdout = tmp
|
|
|
|
except IOError:
|
|
sys.stderr.write("Cannot open %s for writing\n" % ofile)
|
|
sys.exit(1)
|
|
|
|
if not ifile:
|
|
ifile = default_ifile()
|
|
|
|
if ifile != "-":
|
|
try:
|
|
tmp = open(ifile, "r")
|
|
sys.stdin = tmp
|
|
except IOError:
|
|
sys.stderr.write("Cannot open %s for reading\n" % ifile)
|
|
sys.exit(1)
|
|
|
|
if bflag:
|
|
buffers_print_all(sys.stdin, filters, nflag)
|
|
|
|
if dflag:
|
|
print_dict(dnodes_build_dict(sys.stdin), filters, nflag)
|
|
|
|
if tflag:
|
|
print_dict(types_build_dict(sys.stdin), filters, nflag)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|