From: Vincent Fu Date: Tue, 1 Nov 2022 21:24:34 +0000 (-0400) Subject: HOWTO: update description for flow option X-Git-Tag: fio-3.33~5 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=73f168ea2c9a66145559c2217fc5a70c992cb80e;p=fio.git HOWTO: update description for flow option d4e74fda98b60dc175b4114492fcc7c21c617ddd updated the description for `flow` in fio.1 but did not update the HOWTO. Make the HOWTO description match what is in fio.1 Signed-off-by: Vincent Fu --- diff --git a/HOWTO.rst b/HOWTO.rst index e89d05f0..53ae8c17 100644 --- a/HOWTO.rst +++ b/HOWTO.rst @@ -3329,13 +3329,13 @@ Threads, processes and job synchronization .. option:: flow=int - Weight in token-based flow control. If this value is used, then there is a - 'flow counter' which is used to regulate the proportion of activity between - two or more jobs. Fio attempts to keep this flow counter near zero. The - ``flow`` parameter stands for how much should be added or subtracted to the - flow counter on each iteration of the main I/O loop. That is, if one job has - ``flow=8`` and another job has ``flow=-1``, then there will be a roughly 1:8 - ratio in how much one runs vs the other. + Weight in token-based flow control. If this value is used, then fio + regulates the activity between two or more jobs sharing the same + flow_id. Fio attempts to keep each job activity proportional to other + jobs' activities in the same flow_id group, with respect to requested + weight per job. That is, if one job has `flow=3', another job has + `flow=2' and another with `flow=1`, then there will be a roughly 3:2:1 + ratio in how much one runs vs the others. .. option:: flow_sleep=int