c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2025-10-26 18:05:04 +03:00
Code Issues Packages Projects Releases Wiki Activity

Rewrite fHits() in arc_summary.py with SI units

Browse Source 
Complete rewrite of fHits(). Move units from non-standard English
abbreviations to SI units, thereby avoiding confusion because of
"long scale" and "short scale" numbers. Remove unused parameter
"Decimal". Add function string. Aim to confirm to PEP8.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Signed-off-by: Scot W. Stevenson <scot.stevenson@gmail.com>
Closes #6815
This commit is contained in:
Scot W. Stevenson 2017-11-04 21:33:28 +01:00 committed by Tony Hutter
parent 03f638a8ef
commit 88e4e0d5dd
1 changed files with 32 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
cmd/arc_summary/arc_summary.py
View File

@ -111,36 +111,40 @@ def fBytes(b=0):
return result
def fHits(Hits=0, Decimal=2):
khits = (10 ** 3)
mhits = (10 ** 6)
bhits = (10 ** 9)
thits = (10 ** 12)
qhits = (10 ** 15)
Qhits = (10 ** 18)
shits = (10 ** 21)
Shits = (10 ** 24)
def fHits(hits=0):
"""Create a human-readable representation of the number of hits.
The single-letter symbols used are SI to avoid the confusion caused
by the different "short scale" and "long scale" representations in
English, which use the same words for different values. See
https://en.wikipedia.org/wiki/Names_of_large_numbers and
https://physics.nist.gov/cuu/Units/prefixes.html
"""
numbers = [
[10**24, 'Y'], # yotta (septillion)
[10**21, 'Z'], # zetta (sextillion)
[10**18, 'E'], # exa (quintrillion)
[10**15, 'P'], # peta (quadrillion)
[10**12, 'T'], # tera (trillion)
[10**9, 'G'], # giga (billion)
[10**6, 'M'], # mega (million)
[10**3, 'k']] # kilo (thousand)
if hits >= 1000:
for limit, symbol in numbers:
if hits >= limit:
value = hits/limit
break
result = "%0.2f%s" % (value, symbol)
if Hits >= Shits:
return str("%0." + str(Decimal) + "f") % (Hits / Shits) + "S"
elif Hits >= shits:
return str("%0." + str(Decimal) + "f") % (Hits / shits) + "s"
elif Hits >= Qhits:
return str("%0." + str(Decimal) + "f") % (Hits / Qhits) + "Q"
elif Hits >= qhits:
return str("%0." + str(Decimal) + "f") % (Hits / qhits) + "q"
elif Hits >= thits:
return str("%0." + str(Decimal) + "f") % (Hits / thits) + "t"
elif Hits >= bhits:
return str("%0." + str(Decimal) + "f") % (Hits / bhits) + "b"
elif Hits >= mhits:
return str("%0." + str(Decimal) + "f") % (Hits / mhits) + "m"
elif Hits >= khits:
return str("%0." + str(Decimal) + "f") % (Hits / khits) + "k"
elif Hits == 0:
return str("%d" % 0)
else:
return str("%d" % Hits)
result = "%d" % hits
return result
def fPerc(lVal=0, rVal=0, Decimal=2):