Recent changes (master)
The following changes since commit 96344ff00349422172de6fa57899c66dc3c00391:
optgroup: add check for optgroup bit numbers being within range (2018-03-19 15:56:20 -0600)
are available in the git repository at:
git://git.kernel.dk/fio.git master
for you to fetch changes up to 69c594d81d4067fadd70fa4909e19d615efa5f1c:
optgroup: move debug code into function (2018-03-20 11:19:19 -0600)
----------------------------------------------------------------
Jens Axboe (3):
Merge branch 'expand_fiohistparser' of https://github.com/shimrot/fio
Fix whitespace issues in previous commit
optgroup: move debug code into function
krisd (1):
Expand fiologparser_hist operations with new options
optgroup.c | 5 +- tools/hist/fiologparser_hist.py | 385 ++++++++++++++++++++++++++++++-------- tools/hist/fiologparser_hist.py.1 | 23 ++- 3 files changed, 328 insertions(+), 85 deletions(-)
---
Diff of recent changes:
optgroup.c +3 -2
@@ -202,7 +202,8 @@ const struct opt_group *opt_group_from_mask(uint64_t *mask)const struct opt_group *opt_group_cat_from_mask (uint64_t *mask) { +compiletime_assert (__FIO_OPT_G_NR <=8 *sizeof (uint64_t ), +"__FIO_OPT_G_NR" ); +return group_from_mask (fio_opt_cat_groups, mask,FIO_OPT_G_INVALID ); } - -compiletime_assert (__FIO_OPT_G_NR <=8 *sizeof (uint64_t ),"__FIO_OPT_G_NR" );
tools/hist/fiologparser_hist.py +304 -81
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tools/hist/fiologparser_hist.py.1 +21 -2
@@ -8,7 +8,7 @@ fiologparser_hist.py \- Calculate statistics from fio histograms .B fiologparser_hist.py is a utility for converting *_clat_hist* files generated by fio into a CSV of latency statistics including minimum, -average, maximum latency, and 50th, 95th, and 99th percentiles. +average, maximum latency, and selectable percentiles. .SH EXAMPLES .PP .nf
@@ -42,6 +42,9 @@ Interval at which statistics are reported. Defaults to 1000 ms. This should be set a minimum of the value for \fBlog_hist_msec\fR as given to fio. .TP +.BR \-\-noweight +Do not perform weighting of samples between output intervals. Default is False. +.TP .BR \-d ", " \-\-divisor \fR=\fPint Divide statistics by this value. Defaults to 1. Useful if you want to convert latencies from milliseconds to seconds (\fBdivisor\fR=\fP1000\fR).
@@ -53,6 +56,21 @@ Enables warning messages printed to stderr, useful for debugging. Set this to the value of \fIFIO_IO_U_PLAT_GROUP_NR\fR as defined in \fPstat.h\fR if fio has been recompiled. Defaults to 19, the current value used in fio. See NOTES for more details. +.TP +.BR \-\-percentiles \fR=\fPstr +Pass desired list of comma or colon separated percentiles to print. +The default is "90.0:95.0:99.0", but min, median(50%) and max percentiles are always printed +.TP +.BR \-\-usbin +Use to indicate to parser that histogram bin latencies values are in microseconds. +The default is to use nanoseconds, but histogram logs from fio versions <= 2.99 are in microseconds. +.TP +.BR \-\-directions \fR=\fPstr +By default, all directions (e.g read and write) histogram bins are combined +producing one 'mixed' result. +To produce independent directional results, pass some combination of +\'rwtm\' characters with the \-\-directions\fR=\fPrwtm option. +A \'dir\' column is added indicating the result direction for a row. .SH NOTES end-times are calculated to be uniform increments of the \fB\-\-interval\fR value given,
@@ -87,7 +105,8 @@ min / max seen by fio (and reported in *_clat.* with averaging turned off). .PP Average statistics use a standard weighted arithmetic mean. -Percentile statistics are computed using the weighted percentile method as +When --noweights option is false (the default) +percentile statistics are computed using the weighted percentile method as described here: \fIhttps://en.wikipedia.org/wiki/Percentile#Weighted_percentile\fR. See weights() method for details on how weights are computed for individual samples. In process_interval() we further multiply by the height of each bin