Re: what is the sample logger doing when the buffer fills up?

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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

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