Selectors operate on the next individual I/O request rather than a "bunch" of I/O.
Suggested-by: Benjamin Marzinski <[email protected]> Cc: Martin Wilck <[email protected]> Cc: Benjamin Marzinski <[email protected]> Cc: Christophe Varoqui <[email protected]> Cc: DM_DEVEL-ML <[email protected]> Signed-off-by: Xose Vazquez Perez <[email protected]> --- multipath/multipath.conf.5.in | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/multipath/multipath.conf.5.in b/multipath/multipath.conf.5.in index 422ab120..287441bd 100644 --- a/multipath/multipath.conf.5.in +++ b/multipath/multipath.conf.5.in @@ -2,7 +2,7 @@ .\" Update the date below if you make any significant change. .\" ---------------------------------------------------------------------------- . -.TH MULTIPATH.CONF 5 2026-05-27 Linux +.TH MULTIPATH.CONF 5 2026-06-13 Linux . . .\" ---------------------------------------------------------------------------- @@ -193,20 +193,18 @@ kernel multipath target: .RS .TP .I "round-robin 0" -Choose the path for the next bunch of I/O by looping through every path in the -path group, sending \fBthe same number of I/O requests\fR to each path. - +Choose the path for the next I/O request by \fBcycling through the path group\fR. .TP .I "queue-length 0" -(Since 2.6.31 kernel) Choose the path for the next bunch of I/O based on \fBthe lowest +(Since 2.6.31 kernel) Choose the path for the next I/O request based on \fBthe lowest number of outstanding in-flight I/O requests\fR to the path. .TP .I "service-time 0" -(Since 2.6.31 kernel) Choose the path for the next bunch of I/O based on \fBthe +(Since 2.6.31 kernel) Choose the path for the next I/O request based on \fBthe lowest total size (in bytes) of outstanding in-flight I/O requests\fR to the path. .TP .I "historical-service-time 0" -(Since 5.8 kernel) Choose the path for the next bunch of I/O with \fBa dynamic +(Since 5.8 kernel) Choose the path for the next I/O request with \fBa dynamic algorithm based on the historical service time and the number of outstanding in-flight I/O requests\fR to the path. .TP -- 2.54.0
