From: Dietmar Maurer <dietmar@proxmox.com>
To: Dominik Csapak <d.csapak@proxmox.com>,
Proxmox Backup Server development discussion
<pbs-devel@lists.proxmox.com>,
Wolfgang Bumiller <w.bumiller@proxmox.com>,
Stefan Reiter <s.reiter@proxmox.com>
Subject: Re: [pbs-devel] [PATCH proxmox-backup] fix #3359: fix blocking writes in async code during pxar create
Date: Wed, 24 Mar 2021 08:47:44 +0100 (CET) [thread overview]
Message-ID: <1374906493.884.1616572064106@webmail.proxmox.com> (raw)
> On 03/24/2021 8:43 AM Dominik Csapak <d.csapak@proxmox.com> wrote:
>
>
> On 3/24/21 08:17, Dietmar Maurer wrote:
> >> Fixes: 6afb60abf557 ("asyncify pxar create_archive")
> >
> > I am not sure, but maybe 6afb60abf557 is also the cause for
> > the performance regression?
> >
> > (reported at https://bugzilla.proxmox.com/show_bug.cgi?id=3174)
> >
>
> i mean not the perfect benchmark, but here on a relatively
> empty vm (~2GB root disk) with 4 cores + 4GiB Memory
>
> there is no measurable difference between before
> that commit and after
Maybe you test on SDD?
Please can you also test on a slow disk with large seek times?
Also, please drop caches before the test ...
next reply other threads:[~2021-03-24 7:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-24 7:47 Dietmar Maurer [this message]
-- strict thread matches above, loose matches on Subject: below --
2021-03-24 7:17 Dietmar Maurer
2021-03-24 7:43 ` Dominik Csapak
2021-03-23 10:12 Dominik Csapak
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