performance-test-using-PAPI

collect and calculate several performance parameters using PAPI (http://icl.cs.utk.edu/papi/)

parameters

• CPI = Total_Cycles / Total_Instructions_Exec = PAPI_TOT_CYC / PAPI_TOT_INS
• L1 cache miss rate = L1_Misses / (Loads + Stores) = PAPI_L1_TCM / PAPI_LST_INS
• L2 cache miss rate = L2_Misses / L1_Misses = PAPI_L2_TCM / PAPI_L1_TCM
• TLB miss rate = TLB_Misses / (Loads + Stores) = (PAPI_TLB_DM + PAPI_TLB_IM) / PAPI_LST_INS
• Branch miss prediction rate = Mispredicted_Branches / Total Branches Decoded = PAPI_BR_MSP / PAPI_BR_CN

download and extract

    $ tar -xzvf papi-5.4.1.tar.gz

modify path

    $ cd papi-5.4.1/src
    $ vim Makefile
    modify PREFIX = {path}

install

    $ ./configure
    $ make
    $ make install

list all supported events

    $ cd src/ctests
    $ ./all_events

test

    $ icc papi-prime.c  -I papi/include/ papi/lib/libpapi.a  -o  papi-prime
    $ ./papi-prime
    $ icc prime2.c  -I papi/include/ papi/lib/libpapi.a  -o prime2 
    $ ./prime2

result

• Hardware Counters : 11
• CPI : 0.7444
• L1 miss rate : 0.1846
• L2 miss rate : 0.9864
• Hardware Counters : 11
• TLB miss rate : 0.0003
• BR miss predict rate : 0.0074