On Tue, Mar 23, 2010 at 10:02 AM, Nilesh Govindarajan <lists@xxxxxxxxxx> wrote: > On 03/23/2010 07:26 PM, Nilesh Govindarajan wrote: >> >> On 03/23/2010 07:20 PM, Jeff Trawick wrote: >>> >>> On Tue, Mar 23, 2010 at 8:48 AM, Nilesh Govindarajan<lists@xxxxxxxxxx> >>> wrote: >>>> >>>> On 03/23/2010 06:07 PM, Jeff Trawick wrote: >>>>> >>>>> On Sat, Mar 20, 2010 at 2:16 AM, Nilesh Govindarajan<lists@xxxxxxxxxx> >>>>> wrote: >>>>>> >>>>>> Hi, >>>>>> >>>>>> I recently migrated from mod_fastcgi to mod_fcgid and experienced >>>>>> enormous >>>>>> performance boost. >>>>>> >>>>>> My current settings is as follows - >>>>>> >>>>>> FcgidMaxProcesses 100 >>>>>> FcgidMaxProcessesPerClass 50 >>>>>> FcgidFixPathInfo 1 >>>>>> FcgidPassHeader HTTP_AUTHORIZATION >>>>>> FcgidMaxRequestsPerProcess 10000 >>>>> >>>>> Since this is PHP, make sure you sync PHP's child exit strategy with >>>>> mod_fcgid's max-requests-per-process. >>>>> >>>>> See "Special PHP considerations" at >>>>> http://httpd.apache.org/mod_fcgid/mod/mod_fcgid.html for discussion of >>>>> a couple of issues. >>>>> >>>>>> FcgidOutputBufferSize 1048576 >>>>>> FcgidProcessLifeTime 1800 >>>>>> FcgidMinProcessesPerClass 2 >>>>>> >>>>>> Main use is for PHP applications, but in future may add some >>>>>> languages. >>>>>> >>>>>> Server config - >>>>>> >>>>>> Fedora 12, 500 MB RAM, Pentium 2 Ghz >>>>>> >>>>>> PHP applications are cached using Xcache, and will normally use >>>>>> PostgreSQL. >>>> >>>> Yeah I've synced that by setting the relevant PHP_FCGI_* environment >>>> variables. >>>> >>>> But Xcache doesn't work with mod_fcgid. Any solutions for that ? Can >>>> I use >>>> any alternatives to Xcache to cache the compiled code of the PHP >>>> script ? >>> >>> Aren't APC and Xcache similar with respect to mod_fcgid, in that the >>> cache will be utilized for repeated execution by the same PHP process, >>> such that the cache is still useful as long as the PHP process spawned >>> by mod_fcgid remains active for as long as possible? >>> >>> (mod_fcgid's mapping of requests to idle processes it has spawned >>> negates the use of a single such cache for multiple concurrent >>> requests.) >>> >>> --------------------------------------------------------------------- >>> The official User-To-User support forum of the Apache HTTP Server >>> Project. >>> See<URL:http://httpd.apache.org/userslist.html> for more info. >>> To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx >>> " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx >>> For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx >>> >> >> Yeah true. I think I don't need it after you said this. :) >> >> Is even memcached the same wrt mod_fcgid, apc, xcache ? >> > > I found that its not the same and it can't be used as a cache for compiled > scripts. > > mod_fcgid really is infinite times better than mod_fastcgi. For PHP opcode caching, which relies on access to a shared memory cache via the PHP FastCGI process management, mod_fcgid is at a big disadvantage to mod_fcgid: mod_fastcgi can send multiple simultaneous requests to those PHP-managed processes but mod_fcgid can't; thus, the cache won't be as well utilized with mod_fcgid. I have read numerous statements that mod_fcgid is faster than mod_fastcgi, but I don't know precisely why (or when), or if each is optimally configured when compared to the other. --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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