[DragonFlyBSD - Bug #2368] sendfile(2) freezes for a few seconds
Francois Tigeot via Redmine
bugtracker-admin at leaf.dragonflybsd.org
Wed May 16 23:50:58 PDT 2012
Issue #2368 has been updated by Francois Tigeot.
File tcpdump-sendfile.txt added
I've reproduced the issue with a single file (the DragonFly logo).
Complete URL is http://dl.wolfpond.org/small_logo.png
Now that I'm always using the same image, I've noticed the download systematically freezes in the same place, at about 90% of the height.
Bug #2368: sendfile(2) freezes for a few seconds
Author: Francois Tigeot
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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