http_load

http_load - multiprocessing http test client
version of 12, mar, 2006

http://www.acme.com/software/http_load/

http_load runs multiple http fetches in parallel, to test the throughput of a web server. However unlike most such test clients, it runs in a single process, so it doesn't bog down the client machine. It can be configured to do https fetches as well.

See the manual entry for more details.

Files in this distribution:

README          this
Makefile        guess
http_load.c     source file
http_load.1     manual entry
timers.c        timers package
timers.h        headers for timers package
make_test_files simple script to create a set of test files

To build: If you're on a SysV-like machine (which includes old Linux systems but not new Linux systems), edit the Makefile and uncomment the SYSV_LIBS line. If you're doing SSL, uncomment those lines too. Otherwise, just do a make.

Feedback is welcome - send bug reports, enhancements, checks, money orders, etc. to the addresses below.
Jef Poskanzer
http://www.acme.com/jef/

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Notice: http_load use GET method and limit parameters length 500. Modified http_load.c:937 and 1030~1044 lines to making it support more.

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We modified the http_load to making it demonstrates the percentage distribution of response time. Like:

$ http_load -r 100 -s 60 urls

5997 fetches, 24 max parallel, 2.79964e+07 bytes, in 60 seconds
4668.4 mean bytes/connection
99.95 fetches/sec, 466607 bytes/sec
msecs/connect: 4.76659 mean, 1256.03 max, 1.55 min
msecs/first-response: 27.1605 mean, 313.85 max, 6.724 min
5976 bad byte counts
HTTP response codes:
  code 200 -- 5997

Percentage of the requests served within a certain time (ms)
 50%    22
 66%    25
 75%    27
 80%    29 
 90%    37 (90% of response time is less than 37 ms)
 95%    51
 98%    73
 99%    93
 100%   313 (longest request)