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arcstat: add structural, types, states breakdown
Add ARC structural breakdown, ARC types breakdown, ARC states breakdown similar to arc_summary. Additional cleanups included. Reviewed-by: Alexander Motin <mav@FreeBSD.org> Signed-off-by: Theera K. <tkittich@hotmail.com> Closes #16509
This commit is contained in:
Theera K.
+1
-1
@@ -566,7 +566,7 @@ def section_arc(kstats_dict):
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l2_hdr_size = arc_stats['l2_hdr_size']
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abd_chunk_waste_size = arc_stats['abd_chunk_waste_size']
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prt_1('ARC structal breakdown (current size):', f_bytes(arc_size))
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prt_1('ARC structural breakdown (current size):', f_bytes(arc_size))
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prt_i2('Compressed size:',
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f_perc(compressed_size, arc_size), f_bytes(compressed_size))
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prt_i2('Overhead size:',
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+209
-88
@@ -152,6 +152,7 @@ cols = {
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"l2asize": [7, 1024, "Actual (compressed) size of the L2ARC"],
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"l2size": [6, 1024, "Size of the L2ARC"],
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"l2bytes": [7, 1024, "Bytes read per second from the L2ARC"],
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"l2wbytes": [8, 1024, "Bytes written per second to the L2ARC"],
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"grow": [4, 1000, "ARC grow disabled"],
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"need": [5, 1024, "ARC reclaim need"],
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"free": [5, 1024, "ARC free memory"],
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@@ -169,6 +170,83 @@ cols = {
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"zactive": [7, 1000, "zfetch prefetches active per second"],
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}
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# ARC structural breakdown from arc_summary
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structfields = {
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"cmp": ["compressed", "Compressed"],
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"ovh": ["overhead", "Overhead"],
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"bon": ["bonus", "Bonus"],
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"dno": ["dnode", "Dnode"],
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"dbu": ["dbuf", "Dbuf"],
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"hdr": ["hdr", "Header"],
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"l2h": ["l2_hdr", "L2 header"],
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"abd": ["abd_chunk_waste", "ABD chunk waste"],
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}
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structstats = { # size stats
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"percent": "size", # percentage of this value
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"sz": ["_size", "size"],
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}
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# ARC types breakdown from arc_summary
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typefields = {
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"data": ["data", "ARC data"],
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"meta": ["metadata", "ARC metadata"],
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}
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typestats = { # size stats
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"percent": "cachessz", # percentage of this value
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"tg": ["_target", "target"],
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"sz": ["_size", "size"],
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}
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# ARC states breakdown from arc_summary
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statefields = {
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"ano": ["anon", "Anonymous"],
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"mfu": ["mfu", "MFU"],
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"mru": ["mru", "MRU"],
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"unc": ["uncached", "Uncached"],
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}
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targetstats = {
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"percent": "cachessz", # percentage of this value
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"fields": ["mfu", "mru"], # only applicable to these fields
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"tg": ["_target", "target"],
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"dt": ["_data_target", "data target"],
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"mt": ["_metadata_target", "metadata target"],
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}
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statestats = { # size stats
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"percent": "cachessz", # percentage of this value
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"sz": ["_size", "size"],
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"da": ["_data", "data size"],
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"me": ["_metadata", "metadata size"],
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"ed": ["_evictable_data", "evictable data size"],
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"em": ["_evictable_metadata", "evictable metadata size"],
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}
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ghoststats = {
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"fields": ["mfu", "mru"], # only applicable to these fields
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"gsz": ["_ghost_size", "ghost size"],
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"gd": ["_ghost_data", "ghost data size"],
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"gm": ["_ghost_metadata", "ghost metadata size"],
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}
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# fields and stats
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fieldstats = [
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[structfields, structstats],
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[typefields, typestats],
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[statefields, targetstats, statestats, ghoststats],
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]
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for fs in fieldstats:
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fields, stats = fs[0], fs[1:]
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for field, fieldval in fields.items():
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for group in stats:
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for stat, statval in group.items():
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if stat in ["fields", "percent"] or \
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("fields" in group and field not in group["fields"]):
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continue
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colname = field + stat
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coldesc = fieldval[1] + " " + statval[1]
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cols[colname] = [len(colname), 1024, coldesc]
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if "percent" in group:
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cols[colname + "%"] = [len(colname) + 1, 100, \
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coldesc + " percentage"]
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v = {}
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hdr = ["time", "read", "ddread", "ddh%", "dmread", "dmh%", "pread", "ph%",
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"size", "c", "avail"]
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@@ -286,6 +364,29 @@ def snap_stats():
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kstat_update()
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cur = kstat
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# fill in additional values from arc_summary
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cur["caches_size"] = caches_size = cur["anon_data"]+cur["anon_metadata"]+\
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cur["mfu_data"]+cur["mfu_metadata"]+cur["mru_data"]+cur["mru_metadata"]+\
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cur["uncached_data"]+cur["uncached_metadata"]
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s = 4294967296
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pd = cur["pd"]
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pm = cur["pm"]
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meta = cur["meta"]
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v = (s-int(pd))*(s-int(meta))/s
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cur["mfu_data_target"] = v / 65536 * caches_size / 65536
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v = (s-int(pm))*int(meta)/s
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cur["mfu_metadata_target"] = v / 65536 * caches_size / 65536
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v = int(pd)*(s-int(meta))/s
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cur["mru_data_target"] = v / 65536 * caches_size / 65536
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v = int(pm)*int(meta)/s
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cur["mru_metadata_target"] = v / 65536 * caches_size / 65536
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cur["data_target"] = cur["mfu_data_target"] + cur["mru_data_target"]
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cur["metadata_target"] = cur["mfu_metadata_target"] + cur["mru_metadata_target"]
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cur["mfu_target"] = cur["mfu_data_target"] + cur["mfu_metadata_target"]
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cur["mru_target"] = cur["mru_data_target"] + cur["mru_metadata_target"]
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for key in cur:
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if re.match(key, "class"):
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continue
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@@ -295,31 +396,34 @@ def snap_stats():
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d[key] = cur[key]
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def isint(num):
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if isinstance(num, float):
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return num.is_integer()
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if isinstance(num, int):
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return True
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return False
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def prettynum(sz, scale, num=0):
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suffix = [' ', 'K', 'M', 'G', 'T', 'P', 'E', 'Z']
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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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# Special case for date field
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if scale == -1:
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return "%s" % 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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if scale != 100:
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while abs(num) > scale and index < 5:
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num = num / scale
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index += 1
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while abs(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 abs(save / scale) < 10:
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return "%*.1f%s" % (sz - 1, num, suffix[index])
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width = sz - (0 if index == 0 else 1)
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intlen = len("%.0f" % num) # %.0f rounds to nearest int
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if sint == 1 and isint(num) or width < intlen + 2:
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decimal = 0
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else:
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return "%*d%s" % (sz - 1, num, suffix[index])
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decimal = 1
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return "%*.*f%s" % (width, decimal, num, suffix[index])
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def print_values():
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@@ -509,131 +613,148 @@ def calculate():
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v = dict()
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v["time"] = time.strftime("%H:%M:%S", time.localtime())
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v["hits"] = d["hits"] // sint
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v["iohs"] = d["iohits"] // sint
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v["miss"] = d["misses"] // sint
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v["hits"] = d["hits"] / sint
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v["iohs"] = d["iohits"] / sint
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v["miss"] = d["misses"] / sint
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v["read"] = v["hits"] + v["iohs"] + v["miss"]
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v["hit%"] = 100 * v["hits"] // v["read"] if v["read"] > 0 else 0
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v["ioh%"] = 100 * v["iohs"] // v["read"] if v["read"] > 0 else 0
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v["hit%"] = 100 * v["hits"] / v["read"] if v["read"] > 0 else 0
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v["ioh%"] = 100 * v["iohs"] / v["read"] if v["read"] > 0 else 0
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v["miss%"] = 100 - v["hit%"] - v["ioh%"] if v["read"] > 0 else 0
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v["dhit"] = (d["demand_data_hits"] + d["demand_metadata_hits"]) // sint
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v["dioh"] = (d["demand_data_iohits"] + d["demand_metadata_iohits"]) // sint
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v["dmis"] = (d["demand_data_misses"] + d["demand_metadata_misses"]) // sint
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v["dhit"] = (d["demand_data_hits"] + d["demand_metadata_hits"]) / sint
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v["dioh"] = (d["demand_data_iohits"] + d["demand_metadata_iohits"]) / sint
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v["dmis"] = (d["demand_data_misses"] + d["demand_metadata_misses"]) / sint
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v["dread"] = v["dhit"] + v["dioh"] + v["dmis"]
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v["dh%"] = 100 * v["dhit"] // v["dread"] if v["dread"] > 0 else 0
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v["di%"] = 100 * v["dioh"] // v["dread"] if v["dread"] > 0 else 0
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v["dh%"] = 100 * v["dhit"] / v["dread"] if v["dread"] > 0 else 0
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v["di%"] = 100 * v["dioh"] / v["dread"] if v["dread"] > 0 else 0
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v["dm%"] = 100 - v["dh%"] - v["di%"] if v["dread"] > 0 else 0
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v["ddhit"] = d["demand_data_hits"] // sint
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v["ddioh"] = d["demand_data_iohits"] // sint
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v["ddmis"] = d["demand_data_misses"] // sint
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v["ddhit"] = d["demand_data_hits"] / sint
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v["ddioh"] = d["demand_data_iohits"] / sint
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v["ddmis"] = d["demand_data_misses"] / sint
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v["ddread"] = v["ddhit"] + v["ddioh"] + v["ddmis"]
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v["ddh%"] = 100 * v["ddhit"] // v["ddread"] if v["ddread"] > 0 else 0
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v["ddi%"] = 100 * v["ddioh"] // v["ddread"] if v["ddread"] > 0 else 0
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v["ddh%"] = 100 * v["ddhit"] / v["ddread"] if v["ddread"] > 0 else 0
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v["ddi%"] = 100 * v["ddioh"] / v["ddread"] if v["ddread"] > 0 else 0
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v["ddm%"] = 100 - v["ddh%"] - v["ddi%"] if v["ddread"] > 0 else 0
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v["dmhit"] = d["demand_metadata_hits"] // sint
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v["dmioh"] = d["demand_metadata_iohits"] // sint
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v["dmmis"] = d["demand_metadata_misses"] // sint
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v["dmhit"] = d["demand_metadata_hits"] / sint
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v["dmioh"] = d["demand_metadata_iohits"] / sint
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v["dmmis"] = d["demand_metadata_misses"] / sint
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v["dmread"] = v["dmhit"] + v["dmioh"] + v["dmmis"]
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v["dmh%"] = 100 * v["dmhit"] // v["dmread"] if v["dmread"] > 0 else 0
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v["dmi%"] = 100 * v["dmioh"] // v["dmread"] if v["dmread"] > 0 else 0
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v["dmh%"] = 100 * v["dmhit"] / v["dmread"] if v["dmread"] > 0 else 0
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v["dmi%"] = 100 * v["dmioh"] / v["dmread"] if v["dmread"] > 0 else 0
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v["dmm%"] = 100 - v["dmh%"] - v["dmi%"] if v["dmread"] > 0 else 0
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v["phit"] = (d["prefetch_data_hits"] + d["prefetch_metadata_hits"]) // sint
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v["phit"] = (d["prefetch_data_hits"] + d["prefetch_metadata_hits"]) / sint
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v["pioh"] = (d["prefetch_data_iohits"] +
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d["prefetch_metadata_iohits"]) // sint
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d["prefetch_metadata_iohits"]) / sint
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v["pmis"] = (d["prefetch_data_misses"] +
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d["prefetch_metadata_misses"]) // sint
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d["prefetch_metadata_misses"]) / sint
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v["pread"] = v["phit"] + v["pioh"] + v["pmis"]
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v["ph%"] = 100 * v["phit"] // v["pread"] if v["pread"] > 0 else 0
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v["pi%"] = 100 * v["pioh"] // v["pread"] if v["pread"] > 0 else 0
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v["ph%"] = 100 * v["phit"] / v["pread"] if v["pread"] > 0 else 0
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v["pi%"] = 100 * v["pioh"] / v["pread"] if v["pread"] > 0 else 0
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v["pm%"] = 100 - v["ph%"] - v["pi%"] if v["pread"] > 0 else 0
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v["pdhit"] = d["prefetch_data_hits"] // sint
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v["pdioh"] = d["prefetch_data_iohits"] // sint
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v["pdmis"] = d["prefetch_data_misses"] // sint
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v["pdhit"] = d["prefetch_data_hits"] / sint
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v["pdioh"] = d["prefetch_data_iohits"] / sint
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v["pdmis"] = d["prefetch_data_misses"] / sint
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v["pdread"] = v["pdhit"] + v["pdioh"] + v["pdmis"]
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v["pdh%"] = 100 * v["pdhit"] // v["pdread"] if v["pdread"] > 0 else 0
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v["pdi%"] = 100 * v["pdioh"] // v["pdread"] if v["pdread"] > 0 else 0
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v["pdh%"] = 100 * v["pdhit"] / v["pdread"] if v["pdread"] > 0 else 0
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v["pdi%"] = 100 * v["pdioh"] / v["pdread"] if v["pdread"] > 0 else 0
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v["pdm%"] = 100 - v["pdh%"] - v["pdi%"] if v["pdread"] > 0 else 0
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v["pmhit"] = d["prefetch_metadata_hits"] // sint
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v["pmioh"] = d["prefetch_metadata_iohits"] // sint
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v["pmmis"] = d["prefetch_metadata_misses"] // sint
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v["pmhit"] = d["prefetch_metadata_hits"] / sint
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v["pmioh"] = d["prefetch_metadata_iohits"] / sint
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v["pmmis"] = d["prefetch_metadata_misses"] / sint
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v["pmread"] = v["pmhit"] + v["pmioh"] + v["pmmis"]
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v["pmh%"] = 100 * v["pmhit"] // v["pmread"] if v["pmread"] > 0 else 0
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v["pmi%"] = 100 * v["pmioh"] // v["pmread"] if v["pmread"] > 0 else 0
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v["pmh%"] = 100 * v["pmhit"] / v["pmread"] if v["pmread"] > 0 else 0
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v["pmi%"] = 100 * v["pmioh"] / v["pmread"] if v["pmread"] > 0 else 0
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v["pmm%"] = 100 - v["pmh%"] - v["pmi%"] if v["pmread"] > 0 else 0
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v["mhit"] = (d["prefetch_metadata_hits"] +
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d["demand_metadata_hits"]) // sint
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d["demand_metadata_hits"]) / sint
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v["mioh"] = (d["prefetch_metadata_iohits"] +
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d["demand_metadata_iohits"]) // sint
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d["demand_metadata_iohits"]) / sint
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v["mmis"] = (d["prefetch_metadata_misses"] +
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d["demand_metadata_misses"]) // sint
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d["demand_metadata_misses"]) / sint
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v["mread"] = v["mhit"] + v["mioh"] + v["mmis"]
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v["mh%"] = 100 * v["mhit"] // v["mread"] if v["mread"] > 0 else 0
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v["mi%"] = 100 * v["mioh"] // v["mread"] if v["mread"] > 0 else 0
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v["mh%"] = 100 * v["mhit"] / v["mread"] if v["mread"] > 0 else 0
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v["mi%"] = 100 * v["mioh"] / v["mread"] if v["mread"] > 0 else 0
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v["mm%"] = 100 - v["mh%"] - v["mi%"] if v["mread"] > 0 else 0
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v["arcsz"] = cur["size"]
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v["size"] = cur["size"]
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v["c"] = cur["c"]
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v["mfu"] = d["mfu_hits"] // sint
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v["mru"] = d["mru_hits"] // sint
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v["mrug"] = d["mru_ghost_hits"] // sint
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v["mfug"] = d["mfu_ghost_hits"] // sint
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v["unc"] = d["uncached_hits"] // sint
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v["eskip"] = d["evict_skip"] // sint
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v["el2skip"] = d["evict_l2_skip"] // sint
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v["el2cach"] = d["evict_l2_cached"] // sint
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v["el2el"] = d["evict_l2_eligible"] // sint
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v["el2mfu"] = d["evict_l2_eligible_mfu"] // sint
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v["el2mru"] = d["evict_l2_eligible_mru"] // sint
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v["el2inel"] = d["evict_l2_ineligible"] // sint
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v["mtxmis"] = d["mutex_miss"] // sint
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v["mfu"] = d["mfu_hits"] / sint
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v["mru"] = d["mru_hits"] / sint
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v["mrug"] = d["mru_ghost_hits"] / sint
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v["mfug"] = d["mfu_ghost_hits"] / sint
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v["unc"] = d["uncached_hits"] / sint
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v["eskip"] = d["evict_skip"] / sint
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v["el2skip"] = d["evict_l2_skip"] / sint
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v["el2cach"] = d["evict_l2_cached"] / sint
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v["el2el"] = d["evict_l2_eligible"] / sint
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v["el2mfu"] = d["evict_l2_eligible_mfu"] / sint
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v["el2mru"] = d["evict_l2_eligible_mru"] / sint
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v["el2inel"] = d["evict_l2_ineligible"] / sint
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v["mtxmis"] = d["mutex_miss"] / sint
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v["ztotal"] = (d["zfetch_hits"] + d["zfetch_future"] + d["zfetch_stride"] +
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d["zfetch_past"] + d["zfetch_misses"]) // sint
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v["zhits"] = d["zfetch_hits"] // sint
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v["zahead"] = (d["zfetch_future"] + d["zfetch_stride"]) // sint
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v["zpast"] = d["zfetch_past"] // sint
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v["zmisses"] = d["zfetch_misses"] // sint
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v["zmax"] = d["zfetch_max_streams"] // sint
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v["zfuture"] = d["zfetch_future"] // sint
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v["zstride"] = d["zfetch_stride"] // sint
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v["zissued"] = d["zfetch_io_issued"] // sint
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v["zactive"] = d["zfetch_io_active"] // sint
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d["zfetch_past"] + d["zfetch_misses"]) / sint
|
||||
v["zhits"] = d["zfetch_hits"] / sint
|
||||
v["zahead"] = (d["zfetch_future"] + d["zfetch_stride"]) / sint
|
||||
v["zpast"] = d["zfetch_past"] / sint
|
||||
v["zmisses"] = d["zfetch_misses"] / sint
|
||||
v["zmax"] = d["zfetch_max_streams"] / sint
|
||||
v["zfuture"] = d["zfetch_future"] / sint
|
||||
v["zstride"] = d["zfetch_stride"] / sint
|
||||
v["zissued"] = d["zfetch_io_issued"] / sint
|
||||
v["zactive"] = d["zfetch_io_active"] / sint
|
||||
|
||||
# ARC structural breakdown, ARC types breakdown, ARC states breakdown
|
||||
v["cachessz"] = cur["caches_size"]
|
||||
for fs in fieldstats:
|
||||
fields, stats = fs[0], fs[1:]
|
||||
for field, fieldval in fields.items():
|
||||
for group in stats:
|
||||
for stat, statval in group.items():
|
||||
if stat in ["fields", "percent"] or \
|
||||
("fields" in group and field not in group["fields"]):
|
||||
continue
|
||||
colname = field + stat
|
||||
v[colname] = cur[fieldval[0] + statval[0]]
|
||||
if "percent" in group:
|
||||
v[colname + "%"] = 100 * v[colname] / \
|
||||
v[group["percent"]] if v[group["percent"]] > 0 else 0
|
||||
|
||||
if l2exist:
|
||||
v["l2hits"] = d["l2_hits"] // sint
|
||||
v["l2miss"] = d["l2_misses"] // sint
|
||||
v["l2hits"] = d["l2_hits"] / sint
|
||||
v["l2miss"] = d["l2_misses"] / sint
|
||||
v["l2read"] = v["l2hits"] + v["l2miss"]
|
||||
v["l2hit%"] = 100 * v["l2hits"] // v["l2read"] if v["l2read"] > 0 else 0
|
||||
v["l2hit%"] = 100 * v["l2hits"] / v["l2read"] if v["l2read"] > 0 else 0
|
||||
|
||||
v["l2miss%"] = 100 - v["l2hit%"] if v["l2read"] > 0 else 0
|
||||
v["l2asize"] = cur["l2_asize"]
|
||||
v["l2size"] = cur["l2_size"]
|
||||
v["l2bytes"] = d["l2_read_bytes"] // sint
|
||||
v["l2bytes"] = d["l2_read_bytes"] / sint
|
||||
v["l2wbytes"] = d["l2_write_bytes"] / sint
|
||||
|
||||
v["l2pref"] = cur["l2_prefetch_asize"]
|
||||
v["l2mfu"] = cur["l2_mfu_asize"]
|
||||
v["l2mru"] = cur["l2_mru_asize"]
|
||||
v["l2data"] = cur["l2_bufc_data_asize"]
|
||||
v["l2meta"] = cur["l2_bufc_metadata_asize"]
|
||||
v["l2pref%"] = 100 * v["l2pref"] // v["l2asize"]
|
||||
v["l2mfu%"] = 100 * v["l2mfu"] // v["l2asize"]
|
||||
v["l2mru%"] = 100 * v["l2mru"] // v["l2asize"]
|
||||
v["l2data%"] = 100 * v["l2data"] // v["l2asize"]
|
||||
v["l2meta%"] = 100 * v["l2meta"] // v["l2asize"]
|
||||
v["l2pref%"] = 100 * v["l2pref"] / v["l2asize"]
|
||||
v["l2mfu%"] = 100 * v["l2mfu"] / v["l2asize"]
|
||||
v["l2mru%"] = 100 * v["l2mru"] / v["l2asize"]
|
||||
v["l2data%"] = 100 * v["l2data"] / v["l2asize"]
|
||||
v["l2meta%"] = 100 * v["l2meta"] / v["l2asize"]
|
||||
|
||||
v["grow"] = 0 if cur["arc_no_grow"] else 1
|
||||
v["need"] = cur["arc_need_free"]
|
||||
|
||||
Reference in New Issue
Block a user