Am 10.08.2013 16:46, schrieb Leif Hedstrom: > On Aug 10, 2013, at 7:21 AM, Reindl Harald <[email protected]> wrote: > >> has anybody compared 3.2 / 3.3 in performance? >> >> ab -c 200 -n 100000 http://<url>/rte/upload/logo.gif while "logo.gif" is >> 643 bytes small and currently httpd without Trafficserver in front has >> nearly the same perfomrance with even lower CPU > > I haven't seen this behavior. Are you positive the 3.3.5 results are cache > hits ? And if so, that they become RAM cache hits? Just trying to get some > ideas here … :)
i hope so, if not that would be a bug [root@testserver:~]$ curl --head http://rhsoft.testserver/rte/upload/logo.gif HTTP/1.1 200 OK Date: Sat, 10 Aug 2013 15:09:31 GMT Last-Modified: Tue, 11 Apr 2006 10:40:40 GMT ETag: "283-411255ab33a00" Accept-Ranges: bytes Content-Length: 643 Cache-Control: max-age=60 Expires: Sat, 10 Aug 2013 15:10:31 GMT X-Content-Type-Options: nosniff Connection: close Content-Type: image/gif on the origin mod_expires is in action to set 60 seconds cache for images because in our case we have 100% dynamic pages and the job of ATS is only hold back the image/css/js requests from the preforking apache and offer KeepAlive the 60 seconds are reflected in the curl-repsonse abvove which comes from the origin (127.0.0.1:80) <IfModule mod_expires.c> ExpiresActive On ExpiresByType image/jpeg A60 ExpiresByType image/jpg A60 ExpiresByType image/gif A60 ExpiresByType image/png A60 ExpiresByType text/css A60 ExpiresByType text/html A60 ExpiresByType text/javascript A60 ExpiresByType text/comma-separated-values A60 ExpiresByType text/tab-separated-values A60 ExpiresByType application/javascript A60 ExpiresByType application/x-javascript A60 ExpiresByType application/xhtml+xml A60 ExpiresByType application/xml A60 <IfModule/> > Reclaimable freelist would not have these sort of performance discrepancies yes, and it should not matter in a (ok small) cache with only a handful of objects
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