AFIO Benchmark: AFIO vs. OpenMP

gistfile1.txt

gentryx@neuromancer ~/afio_benchmark $ ll
insgesamt 244
-rw-r--r--  1 gentryx users  14767 31. Aug 00:47 afio.cpp
-rwxr-xr-x  1 gentryx users    440 31. Aug 00:47 benchmark
drwxr-xr-x 14 gentryx users   4096 24. Aug 10:42 boost.afio
-rw-r--r--  1 gentryx users   3389 31. Aug 00:47 openmp.cpp
-rwxr-xr-x  1 gentryx users 218096 31. Aug 00:39 test_exe

00:48:02 - 0
gentryx@neuromancer ~/afio_benchmark $ du -m --max-depth=1
80      ./boost.afio
80      .

00:48:04 - 0
gentryx@neuromancer ~/afio_benchmark $ cat benchmark 
#!/bin/bash

g++ -O3 -march=native -fopenmp -std=c++11 afio.cpp -Iboost.afio/include/ -Iboost.afio -lboost_system -lpthread -lboost_filesystem -ldl -o test_exe

for ((i=0; i<10; ++i)) do
    ./test_exe niall | grep ^The
done

g++ -O3 -march=native -fopenmp -std=c++11 openmp.cpp -Iboost.afio/include/ -Iboost.afio -lboost_system -lpthread -lboost_filesystem -ldl -o test_exe

for ((i=0; i<10; ++i)) do
    ./test_exe niall | grep ^The
done

00:49:10 - 0
gentryx@neuromancer ~/afio_benchmark $ ./benchmark 
The search took 0.270797 seconds which was 8947.68 files per second or 263.433 Mb/sec.
The search took 0.557394 seconds which was 4347.01 files per second or 127.983 Mb/sec.
The search took 0.572427 seconds which was 4232.85 files per second or 124.622 Mb/sec.
The search took 0.269116 seconds which was 9003.56 files per second or 265.079 Mb/sec.
The search took 0.272555 seconds which was 8889.95 files per second or 261.734 Mb/sec.
The search took 0.267085 seconds which was 9072.01 files per second or 267.094 Mb/sec.
The search took 0.271559 seconds which was 8922.57 files per second or 262.694 Mb/sec.
The search took 0.273053 seconds which was 8873.75 files per second or 261.257 Mb/sec.
The search took 0.274093 seconds which was 8840.07 files per second or 260.265 Mb/sec.
The search took 0.274805 seconds which was 8817.17 files per second or 259.591 Mb/sec.
The search took 0.119891 seconds which was 20243.4 files per second or 591.072 Mb/sec.
The search took 0.117145 seconds which was 20709.4 files per second or 604.96 Mb/sec.
The search took 0.117388 seconds which was 20700.6 files per second or 603.731 Mb/sec.
The search took 0.118453 seconds which was 20497.6 files per second or 598.291 Mb/sec.
The search took 0.117273 seconds which was 20686.8 files per second or 604.238 Mb/sec.
The search took 0.117758 seconds which was 20618.6 files per second or 601.708 Mb/sec.
The search took 0.120818 seconds which was 20088.1 files per second or 586.538 Mb/sec.
The search took 0.126003 seconds which was 19261.5 files per second or 562.452 Mb/sec.
The search took 0.116701 seconds which was 20796.8 files per second or 607.266 Mb/sec.
The search took 0.120875 seconds which was 20111.6 files per second or 586.314 Mb/sec.