c10M

Research into the c10M problem with respect to the Linux kernel.

Making and running siege

Step 1: Make and run

mkdir build
cd build
cmake ../
make clean 
make clean && make VERBOSE=1
gcc  -g   CMakeFiles/httpio-static.dir/src/main.c.o  -o httpio-static -pthread libhttpiolib-static.a

Note on build failure

Cmake uses the gcc command with -lpthread even for static build, which is causing the error. See https://stackoverflow.com/questions/23250863/difference-between-pthread-and-lpthread-while-compiling for differences.

The problem with dynamic build is probably the function pointer in the structure being not initalised in the dynamic library.

TODO fix dynamic build.

TODO: building with paramters

Make can specify parameters. By default the parameters are taken from conf.h.

make CFLAGS=-D TUPLE_TYPE={} -D IOLOOP_TYPE={} -D HANDLER_LIFECYCLE={}

The following parameters are possible:

TUPLE_TYPE is one of ['TUPLE_INET']
IOLOOP_TYPE is one of ['IOLOOP_ACCEPT', 'IOLOOP_SELECT']
HANDLER_LIFECYCLE is one of ['PROCESS_UNIPROCESS', 'PROCESS_FORK']

Invoke run via.

./httpio

Run siege or ab on the server

siege -c64 -t10s -b http://localhost:8888/

ab -c64 -t10 -r http://localhost:8888/

Above command runs HTTP siege or Apache ab on the default bind port of the ./httpio process. 64 concurrent connections are used at max to run for 10 seconds in benchmarking mode. Note that using the -b benchmarking flag is similar to doing -d0 which sets the delay between two users to 0. The -r flag in ab says don't close socket on receive errors.