[DragonFlyBSD - Bug #2368] sendfile(2) freezes for a few seconds

[Sepherosa Ziehau via Redmine <bugtracker-admin@xxxxxxxxxxxxxxxxxxxxx>]

Issue #2368 has been updated by Sepherosa Ziehau.


On Thu, May 17, 2012 at 3:07 AM, Francois Tigeot via Redmine
<bugtracker-admin@leaf.dragonflybsd.org> wrote:
>
> Issue #2368 has been reported by Francois Tigeot.
>
> ----------------------------------------
> Bug #2368: sendfile(2) freezes for a few seconds
> http://bugs.dragonflybsd.org/issues/2368
>
> Author: Francois Tigeot
> Status: New
> Priority: Normal
> Assignee:
> Category:
> Target version:
>
>
> Having updated a web server to apache-2.4 (sendfile enabled), I noticed
> some static images didn't load in one go:
>
> - top parts are displayed instantly
> - image downloads freeze for a few seconds
> - missing bottom parts are then downloaded and displayed instantly
>
> Switching EnableSendfile between on/off in httpd.conf enables or disables
> this behavior 100% of the time

Possible to get a tcpdump (w/ -s 128 should be ok)?

Best Regards,
sephe

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Tomorrow Will Never Die
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Bug #2368: sendfile(2) freezes for a few seconds
http://bugs.dragonflybsd.org/issues/2368

Author: Francois Tigeot
Status: New
Priority: Normal
Assignee: 
Category: 
Target version: 


Having updated a web server to apache-2.4 (sendfile enabled), I noticed
some static images didn't load in one go:

- top parts are displayed instantly
- image downloads freeze for a few seconds
- missing bottom parts are then downloaded and displayed instantly

Switching EnableSendfile between on/off in httpd.conf enables or disables
this behavior 100% of the time


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