| Message ID | 20210908203354.13312-1-xose.vazquez@gmail.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Delegated to: | christophe varoqui |
| Headers | show |
| Series | multipath-tools: add info about IO affinity path selector to manpage | expand |
On Wed, 2021-09-08 at 22:33 +0200, Xose Vazquez Perez wrote: > Added in 5.11: > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e4d2e82b2300b03f66b3ca8417590c86e661fab1 > > Cc: Mike Christie <michael.christie@oracle.com> > Cc: Martin Wilck <mwilck@suse.com> > Cc: Benjamin Marzinski <bmarzins@redhat.com> > Cc: Christophe Varoqui <christophe.varoqui@opensvc.com> > Cc: DM-DEVEL ML <dm-devel@redhat.com> > Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com> Reviewed-by: Martin Wilck <mwilck@suse.com> -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel
diff --git a/multipath/multipath.conf.5 b/multipath/multipath.conf.5 index d6b8c7f6..42a15ffd 100644 --- a/multipath/multipath.conf.5 +++ b/multipath/multipath.conf.5 @@ -6,7 +6,7 @@ .\" .\" ---------------------------------------------------------------------------- . -.TH MULTIPATH.CONF 5 2018-05-21 Linux +.TH MULTIPATH.CONF 5 2021-09-08 Linux . . .\" ---------------------------------------------------------------------------- @@ -210,6 +210,10 @@ of outstanding I/O to the path and its relative throughput. estimation of future service time based on the history of previous I/O submitted to each path. .TP +.I "io-affinity 0" +(Since 5.11 kernel) Choose the path for the next bunch of I/O based on a CPU to +path mapping the user passes in and what CPU we are executing on. +.TP The default is: \fBservice-time 0\fR .RE .
Added in 5.11: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e4d2e82b2300b03f66b3ca8417590c86e661fab1 Cc: Mike Christie <michael.christie@oracle.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Benjamin Marzinski <bmarzins@redhat.com> Cc: Christophe Varoqui <christophe.varoqui@opensvc.com> Cc: DM-DEVEL ML <dm-devel@redhat.com> Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com> --- multipath/multipath.conf.5 | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)