On Thu, Jun 18, 2026 at 03:45:20PM +0200, Xose Vazquez Perez wrote: > 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]> > --- > v2: fix typo, s/group/groups (spotted by Martin) > v3: revert v2, "group" makes more sense. (spotted by Ben)
Reviewed-by: Benjamin Marzinski <[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..5b730801 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
