path: root/gerror.h
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authorDennis Zhou <>2018-09-20 14:08:08 -0400
committerJens Axboe <>2018-09-20 13:07:37 -0600
commitb9921d1a56d9a6576dcf6c276b380a2a29a112be (patch)
tree7984dfb84f958e941175965a392df3a49b7f656f /gerror.h
parent532eda7ed384fff8ebfde90fc50f94618d6a5fb6 (diff)
blktrace: add support to interleave blktrace files
Running concurrent workloads via multiple jobs can lead to nondeterministic results as we are at the scheduler's mercy. While the actual performance of the workload may vary regardless, this makes the order of events consistent. This patch introduces two flags: --merge_blktrace_file=<file> and --merge-blktrace-only. When the first is specified, files that are ':' separated in --read_iolog are passed to a merge function wich then produces a single sorted trace file. This file is then passed on in place of the sorted list or fio exists if --merge-blktrace-only is specified. During merging, events are filtered based on what fio cares about and the pdu is discarded as well. Signed-off-by: Dennis Zhou <> Signed-off-by: Jens Axboe <>
Diffstat (limited to 'gerror.h')
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