I'm doing a series of benchmarks and found the httpperf tool.
But the version in my ubuntu 12.04 has a too small file descriptor size. Because it warns me with this message:
- httperf: warning: open file limit > FD_SETSIZE; limiting max. # of open files to FD_SETSIZE
There used to be guide to compile httperf with a bigger size in http://gom-jabbar.org/articles/2009/02/04/httperf-and-file-descriptors but the site is down now.
Does anyone knows the steps to compile the tool with the proper settings?
I've always followed the instructions here, which should set the global values properly. You can check by issuing a ulimit -n (N.B. I had to include ulimit -n 65535 in my .profile — for some reason named users don't require this but root does.)
Don't forget to recompile httperf. Before doing make install issue a ./httperf -v | grep maximum — you should see 65535. If not, something went wrong.
I am working on a similar project (httperf 0.9.0 on Ubuntu 12.04) but I am having some difficulty getting httperf to actually compile properly. I'm sure I've forgotten something basic, but let me know how you fare. EDIT: Realized my problem was a library version incompatibility. I imported the binary built on a different server and it works fine.
I came to this answer and didn't want to go through the hassle of recompiling a package I'd installed via apt-get. What I ultimately did was just use the ab command instead:
ab -c 5 -n 50000 http://localhost:5000
Hope this helps someone else that is encourtering this bug.
来源：https://stackoverflow.com/questions/16445074/changing-the-file-descriptor-size-in-httperf