Alexander Gladysh wrote:
With 10 worker threads and nginx, "ab -c 10 -n 10
http://x.x.x.x/multiplex-test.lua"; gives almost 10 rps, each one taking
just
over 1 sec. If any take 2 secs or more, then the webserver is serializing
requests.
Sorry for the stupid question, but you are of course, aware, that ab
-c 10 still runs in a single thread? (I'm asking because I've figured
this out only recently.)
Not sure about how it uses threads, but it certainly runs multiple
connections simultaneously (on FreeBSD-7.2 at least). That test took only 1
second to run.
<...>
After looking at the C code for ab, it is not multi-threaded, true. But it
definitely supports concurrent connections, using an event/poll model (just
like lighttpd). So it will certainly suffice for such testing.
I was worried by this article:
http://weblogs.java.net/blog/sdo/archive/2007/03/ab_considered_h.html
You have inspired me to dig around, and I found this rather nifty tool:
http://curl-loader.sourceforge.net/
It is pure C (doesn't require a JVM), multithreaded, and uses libcurl -
which is used by many companies for automation clients that connect to
HTTP gateways. Not to mention about a zillion PHP/Python/Ruby shopping
carts and webapps.
This would make it perfect for a tool that tests consumable RESTful
interfaces and large interactive webapps (forums/social sites/digital
content delivery). You can't get more authentic then the library many of
the data consumers will use.
I will be playing around with it for awhile. Run some comparisons.
Anyone else have any suggestions for good testing tools of web frameworks?
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