> n Thu, Jul 1, 2010 at 7:35 PM, Joe Novak <jnovak@xxxxxxxxxxxxxxxxxx> wrote: > I set up a jmeter test to open a socket to Apache HTTP, request a very > small file, and close the socket. Jmeter is running on the same box as > the Apache HTTP service. At 2 sockets/second, there is a 3% error rate. > At 5 sockets/second, the error rate increases to 8%. Failures occur at > regular intervals. With 2 sockets/second failure is about every 20 > minutes. With 5 sockets/second, failure is at 15 minute intervals. > > In a separate jmeter test, I set up 1300 concurrent requests with a > delay between each run. Failure occurred within just a few seconds. > The symptoms were much worse with this test. Symptoms were very much > like a denial of service. When I open a browser and manually download > the small file, the browser spins and never returns with a response. > > I have tried tweaking the Windows registry and the httpd.conf file to > improve performance, but nothing seems to help. Relevant tweaks from > httpd.conf are shown below. > > ThreadLimit 3600 > ThreadsPerChild 3200 > > I also tried the following to improve reliability, but it made no > difference. > > EnableMMAP off > EnableSendfile off > Win32DisableAcceptEx > > Has anyone else observed these problems? Is there anything that can be > done to improve reliability or performance? Thanks. what version of windows, and are you sure you didn't run out of usable client ports? -- Eric Covener covener@xxxxxxxxx --------------------------------------------------------------------- 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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