On 07/11/2012 12:39 AM, emery@xxxxxxx wrote: > emery@xxxxxxx: Scott Emery <emery@xxxxxxx> > In message <201207092138.q69LcsAr22293463@xxxxxxxxxxxxxxxxxxxxx>, Scott Emery w > rites: >> >> I eventually want to specify a job on the command line that includes >> collecting latency/bandwidth/iops logs. >> >> I have a command/job script combination that makes latency >> logs in 1.38 and doesn't in 1.39. I fail to get latency logs for a fair >> sample of fio versions from 1.39 to 2.07. I discovered this in attempting >> to figure out where the behavior changed. >> >> cat ./run >> # >> /loaner/semery/fio/fio-1.39/fio --output test.small.loaner --latency-log --ban >> dwidth-log --alloc-size=4096 test.small >> >> cat test.small >> # >> [global] >> bs=2m >> ioengine=libaio >> iodepth=1 >> size=1g >> direct=1 >> runtime=1200 >> directory=/loaner/semery/fio/latencylogs >> group_reporting >> >> [seq-read] >> rw=read >> numjobs=2 >> >> [seq-write] >> new_group >> rw=write >> numjobs=1 >> >> >> When run uses fio-1.38 I get the following: >> [semery@lou2-mov4 latencylogs]$ ./run >> [semery@lou2-mov4 latencylogs]$ ls >> run seq-write.3.0 test.putgetstorm.iod4.loaner >> seq-read.1.0 seq-write_clat.log test.small >> seq-read.2.0 seq-write_slat.log test.small.loaner >> >> With fio-1.39 I get: >> [semery@lou2-mov4 latencylogs]$ ls >> run seq-write.3.0 test.putgetstorm.iod4.loaner >> seq-read.1.0 test.putgetstorm test.small >> seq-read.2.0 test.putgetstorm.iod4 test.small.loaner >> >> I grovelled through a diff -r of 1.38 and 1.39 and the significant looking >> difference is this: >> >> diff -r fio-1.38/init.c fio-1.39/init.c >> 884,886d883 >> < def_thread.o.write_bw_log = write_bw_log; >> < def_thread.o.write_lat_log = write_lat_log; >> < >> >> >> Have latency logs, et. al. been deprecated? Is there a new/better >> way to get them? >> >> >> Scott Emery >> emery@xxxxxxx >> -- >> To unsubscribe from this list: send the line "unsubscribe fio" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > > That is commit 91da686ce2136e70c0ba734ad5698684582ab1b0 > http://git.kernel.dk/?p=fio.git;a=commit;h=91da686ce2136e70c0ba734ad5698684582ab1b0A > "Keep the global command line bw/lat logs separate from per job logs" > > That sounds like a good goal, but I don't seem to be able to generate > bw/lat logs using the command line since fio-1.39. Hmm weird, I'll take a look at this. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
