Hi,
the problem is that I have no debug symbols and the libraries have no version
information compiled into them so I cannot even ask for pdbs for a specific
version.
Should I get pdbs from VMWare or do they supply symbols for these things
somewhere e.g. a symbol server?
Yours,
Alois Kraus, Alois (SHS DI SY R&D AS SE)
From: Alin Serdean <alinserd...@gmail.com>
Sent: Thursday, July 11, 2024 5:00 PM
To: Eelco Chaudron <echau...@redhat.com>
Cc: Kraus, Alois <alois.kr...@siemens-healthineers.com>; b...@openvswitch.org
Subject: Re: [ovs-discuss] High CPU of ovs-vswitchd.exe
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FWIW the windows datapath does not have megaflows implemented.
The expectation is to have a huge number of DP flows on a busy system.
--
Alin.
On Thu, Jul 11, 2024 at 2:12 PM Eelco Chaudron via discuss
<ovs-discuss@openvswitch.org<mailto:ovs-discuss@openvswitch.org>> wrote:
On 11 Jul 2024, at 11:42, Kraus, Alois via discuss wrote:
> Hi,
>
> is this the right place to report this? I have observed pretty high CPU of
> ovs-vswitchd.exe even when the (Tanzu) VM is idle.
> It seems to poll every 500ms on 4 threads for 70ms
>
> [cid:image001.png@01DAD387.07AFD320]
>
>
> [cid:image002.png@01DAD387.07AFD320]
>
>
> This seems to be consumed by PThreadVC2 library which most likely does an
> excessive amount of CPU spinning just to find that no one did wake up. CPU
> spinning is meant for Spinlocks in the range of sub ms or a few ms at most
> but not for such long times.
>
> [cid:image003.png@01DAD387.616F9800]
>
>
> Where can I report this one? We would like to do something more useful with
> our cores than CPU spinning.
500ms sounds like the revalidator threads kicking in. If there are no DP rules,
it should not take much CPU (at least on the Linux builds). If you are sure
it’s all in the PThreadVC2 library, digging into that part might be the best
next step. Sorry, I have no experience with the windows builds.
//Eelco
> Yours,
> Alois
> _______________________________________________
> discuss mailing list
> disc...@openvswitch.org<mailto:disc...@openvswitch.org>
> https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
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