There are more. In a 60s test, logging every 1s, I see 6 to 7 samples get dropped. But I only see it when numjobs > 1. Regards, Jeff -----Original Message----- From: Jens Axboe [mailto:axboe@xxxxxxxxx] Sent: Thursday, July 7, 2016 2:44 PM To: Jeff Furlong <jeff.furlong@xxxxxxxx>; Karl Cronburg <kcronbur@xxxxxxxxxx> Cc: fio@xxxxxxxxxxxxxxx Subject: Re: what is the sample logger doing when the buffer fills up? On 07/07/2016 03:04 PM, Jeff Furlong wrote: > I am still seeing dropped entries on a slightly different case: > > # fio -version > fio-2.12-5-g0b2e > > # fio --name=test_job --ioengine=libaio --direct=1 --rw=randread --iodepth=256 --size=100% --numjobs=2 --bs=4k --filename=/dev/nvme0n1 --group_reporting --write_bw_log=test_job --write_iops_log=test_job --write_lat_log=test_job --log_avg_msec=1000 --disable_lat=0 --disable_clat=0 --disable_slat=0 --runtime=60s --time_based --output=test_job > > # cat test_job_iops.1.log > 1000, 375601, 0, 0 > 3000, 243539, 0, 0 > 4000, 462076, 0, 0 That's very odd. Is it just the 2000 that's dropped, or are there more? -- Jens Axboe Western Digital Corporation (and its subsidiaries) E-mail Confidentiality Notice & Disclaimer: This e-mail and any files transmitted with it may contain confidential or legally privileged information of WDC and/or its affiliates, and are intended solely for the use of the individual or entity to which they are addressed. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited. If you have received this e-mail in error, please notify the sender immediately and delete the e-mail in its entirety from your system. ��.n��������+%������w��{.n�������^n�r������&��z�ޗ�zf���h���~����������_��+v���)ߣ�
