For anyone running MediaWiki and Apache on Windows: are you seeing lots of page faults in the httpd.exe process? Like, hundreds of millions? (I've already asked this question in the Apache lists and gotten no response.) To see them, run Task Manager and in the View menu, choose to view "Page Faults". With MediaWiki 1.11.0 and Apache 2.2 running on Windows 2003 Server, every web page hit generates 3000 page faults or more; Is this normal? If not, any suggestions for which settings to tweak first? The httpd.conf file hasn't been changed much from the default. I'll be happy to post it if that helps. There is plenty of RAM (2 gigabytes, only 50% used). It's a VMware virtual machine if that matters. DanB
On Jan 25, 2008 7:55 AM, Daniel Barrett danb@vistaprint.com wrote:
For anyone running MediaWiki and Apache on Windows: are you seeing lots of page faults in the httpd.exe process? Like, hundreds of millions? (I've already asked this question in the Apache lists and gotten no response.) To see them, run Task Manager and in the View menu, choose to view "Page Faults".
httpd isn't going to stay completely in memory at all times, there is no need it would be wasteful especially if the myraid of aspects of httpd are not used by the running process. however because it has many workers and sub processes and what not it does swap in and out a lot and has a ton of activity (though likely minor impact) on this front.
ten million or so pagefaults isn't a big thing for a very sub process intensive program (like explorer for example).
http://en.wikipedia.org/wiki/Page_fault
Thanks for your note. You're right, Windows Explorer generates about 2000 page faults every time you open a folder.
DanB
-----Original Message----- Gabriel Millerd wrote:
ten million or so pagefaults isn't a big thing for a very sub process intensive program (like explorer for example).
mediawiki-l@lists.wikimedia.org