| Message ID | 20190430235150.11936-1-blp@ovn.org |
|---|---|
| State | Accepted |
| Commit | 4224b9cf8fdba23fa35c1894eae42fd953a3780b |
| Headers | show |
| Series | [ovs-dev] ovs-vswitchd: Update limits section in manpage. | expand |
On Wed, May 1, 2019 at 5:23 AM Ben Pfaff <blp@ovn.org> wrote: > Reported-by: William Konitzer <wkonitzer@mirantis.com> > Signed-off-by: Ben Pfaff <blp@ovn.org> > Acked-by: Numan Siddique <nusiddiq@redhat.com> > --- > vswitchd/ovs-vswitchd.8.in | 12 +++++++----- > 1 file changed, 7 insertions(+), 5 deletions(-) > > diff --git a/vswitchd/ovs-vswitchd.8.in b/vswitchd/ovs-vswitchd.8.in > index 901f75e6f300..fcf22244a60f 100644 > --- a/vswitchd/ovs-vswitchd.8.in > +++ b/vswitchd/ovs-vswitchd.8.in > @@ -319,13 +319,12 @@ limits assume the use of the Linux kernel datapath. > \fBovs\-vswitchd\fR started through \fBovs\-ctl\fR(8) provides a limit of > 65535 > file descriptors. The limits on the number of bridges and ports is > decided by > the availability of file descriptors. With the Linux kernel datapath, > creation > -of a single bridge consumes three file descriptors and adding a port > consumes > -"n-handler-threads" file descriptors per bridge port. Performance will > degrade > -beyond 1,024 ports per bridge due to fixed hash table sizing. Other > platforms > +of a single bridge consumes three file descriptors and each port > +consumes one additional file descriptor. Other platforms > may have different limitations. > . > .IP \(bu > -2,048 MAC learning entries per bridge, by default. (This is > +8,192 MAC learning entries per bridge, by default. (This is > configurable via \fBother\-config:mac\-table\-size\fR in the > \fBBridge\fR table. See \fBovs\-vswitchd.conf.db\fR(5) for details.) > . > @@ -351,7 +350,10 @@ time linear in the number of flows. > 32 mirrors per bridge. > . > .IP \(bu > -15 bytes for the name of a port. (This is a Linux kernel limitation.) > +15 bytes for the name of a port, for ports implemented in the Linux > +kernel. Ports implemented in userspace, such as patch ports, do not > +have an arbitrary length limitation. OpenFlow also limit port names > +to 15 bytes. > . > .SH "SEE ALSO" > .BR ovs\-appctl (8), > -- > 2.20.1 > > _______________________________________________ > dev mailing list > dev@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-dev >
On Fri, May 10, 2019 at 02:33:29PM +0530, Numan Siddique wrote: > On Wed, May 1, 2019 at 5:23 AM Ben Pfaff <blp@ovn.org> wrote: > > > Reported-by: William Konitzer <wkonitzer@mirantis.com> > > Signed-off-by: Ben Pfaff <blp@ovn.org> > > > > Acked-by: Numan Siddique <nusiddiq@redhat.com> Thanks, applied to master.
diff --git a/vswitchd/ovs-vswitchd.8.in b/vswitchd/ovs-vswitchd.8.in index 901f75e6f300..fcf22244a60f 100644 --- a/vswitchd/ovs-vswitchd.8.in +++ b/vswitchd/ovs-vswitchd.8.in @@ -319,13 +319,12 @@ limits assume the use of the Linux kernel datapath. \fBovs\-vswitchd\fR started through \fBovs\-ctl\fR(8) provides a limit of 65535 file descriptors. The limits on the number of bridges and ports is decided by the availability of file descriptors. With the Linux kernel datapath, creation -of a single bridge consumes three file descriptors and adding a port consumes -"n-handler-threads" file descriptors per bridge port. Performance will degrade -beyond 1,024 ports per bridge due to fixed hash table sizing. Other platforms +of a single bridge consumes three file descriptors and each port +consumes one additional file descriptor. Other platforms may have different limitations. . .IP \(bu -2,048 MAC learning entries per bridge, by default. (This is +8,192 MAC learning entries per bridge, by default. (This is configurable via \fBother\-config:mac\-table\-size\fR in the \fBBridge\fR table. See \fBovs\-vswitchd.conf.db\fR(5) for details.) . @@ -351,7 +350,10 @@ time linear in the number of flows. 32 mirrors per bridge. . .IP \(bu -15 bytes for the name of a port. (This is a Linux kernel limitation.) +15 bytes for the name of a port, for ports implemented in the Linux +kernel. Ports implemented in userspace, such as patch ports, do not +have an arbitrary length limitation. OpenFlow also limit port names +to 15 bytes. . .SH "SEE ALSO" .BR ovs\-appctl (8),
Reported-by: William Konitzer <wkonitzer@mirantis.com> Signed-off-by: Ben Pfaff <blp@ovn.org> --- vswitchd/ovs-vswitchd.8.in | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-)