sejima

$ export PS1="Xeon L5630:\w$ "
Xeon L5630:~$ for i in 1 2; do gcc -O2 -Wall -Werror test$i.c -o test$i; done
Xeon L5630:~$ diff -u <(objdump -d test1) <(objdump -d test2)
--- /dev/fd/63  2015-09-15 15:06:00.529163166 +0900
+++ /dev/fd/62  2015-09-15 15:06:00.529163166 +0900
@@ -1,5 +1,5 @@

-test1:     file format elf64-x86-64
+test2:     file format elf64-x86-64

sejima

Xeon L5630:~$ grep Xeon /proc/cpuinfo | head -n1
model name      : Intel(R) Xeon(R) CPU           L5630  @ 2.13GHz
Xeon L5630:~$ lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                8
On-line CPU(s) list:   0-7
Thread(s) per core:    2
Core(s) per socket:    4

sejima

$ export PS1="Xeon E5-2630L v3:\w$ "
Xeon E5-2630L v3:~$ grep Xeon /proc/cpuinfo | head -n1
model name      : Intel(R) Xeon(R) CPU E5-2630L v3 @ 1.80GHz
Xeon E5-2630L v3:~$ lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                16
On-line CPU(s) list:   0-15
Thread(s) per core:    2

sejima

Xeon L5630:~$ for i in 1 2; do perf stat -e cycles,instructions,cache-references,cache-misses,stalled-cycles-frontend,stalled-cycles-backend,LLC-loads,LLC-load-misses ./test$i; sleep 3; done
16777216

 Performance counter stats for './test1':

       12433495368 cycles                    [49.90%]
       20189930563 instructions              #    1.62  insns per cycle
                                             #    0.35  stalled cycles per insn [62.43%]
           8512348 cache-references                                             [62.49%]
           4216625 cache-misses              #   49.535 % of all cache refs     [62.61%]

sejima

Xeon E5-2630L v3:~$ for i in 1 2; do perf stat -e cycles,instructions,cache-references,cache-misses,stalled-cycles-frontend,stalled-cycles-backend,LLC-loads,LLC-load-misses ./test$i; sleep 3; done
16777216

 Performance counter stats for './test1':

        8694304425 cycles
       20208045634 instructions              #    2.32  insns per cycle
           4404223 cache-references
            188371 cache-misses              #    4.277 % of all cache refs
   <not supported> stalled-cycles-frontend

sejima

Xeon L5630:~$ for i in {0..7}; do sudo /usr/bin/cpufreq-set -g userspace -c $i; done
Xeon L5630:~$ for i in {0..7}; do sudo /usr/bin/cpufreq-set -f 1600 -c $i; done
Xeon L5630:~$ for i in 1 2; do perf stat -e cycles,instructions,cache-references,cache-misses,stalled-cycles-frontend,stalled-cycles-backend,LLC-loads,LLC-load-misses ./test$i; sleep 3; done
16777216

 Performance counter stats for './test1':

       12364612599 cycles                    [50.03%]
       20176026807 instructions              #    1.63  insns per cycle
                                             #    0.34  stalled cycles per insn [62.54%]

sejima

Xeon E5-2630L v3:~$ for i in {0..15}; do sudo /usr/bin/cpufreq-set -g userspace -c $i; done
Xeon E5-2630L v3:~$ for i in {0..15}; do sudo /usr/bin/cpufreq-set -f 1200 -c $i; done
Xeon E5-2630L v3:~$ for i in 1 2; do perf stat -e cycles,instructions,cache-references,cache-misses,stalled-cycles-frontend,stalled-cycles-backend,LLC-loads,LLC-load-misses ./test$i; sleep 3; done
16777216

 Performance counter stats for './test1':

        8881000836 cycles
       20213556068 instructions              #    2.28  insns per cycle
           4419790 cache-references

sejima

$ grep -n -C2 lpthread configure
1764-CFLAGS="${CFLAGS=}"
1765-#UPERF_LIBS="${UPERF_LIBS=}"
1766:UPERF_LIBS="$UPERF_LIBS -lpthread -lrt -lm"
1767-
1768-# Checks for programs.
$

sejima

Xeon E5-2630 v3:~/uperf-1.0.4/src$ head -n 20 uperf*.xml
==> uperf1000.xml <==
<?xml version="1.0"?>
<profile name="TCP_1000">
  <group nthreads="256">
        <transaction iterations="1">
            <flowop type="connect" options="remotehost=${REMOTE_ADDR} protocol=tcp tcp_nodelay"/>
        </transaction>
        <transaction duration="300">
            <flowop type="write" options="size=1000 non_blocking"/>

sejima

$ ./sysbench --test=${SYSBENCH_DIR}/tests/db/parallel_prepare.lua --db-driver=mysql --oltp-tables-count=4 --oltp-table-size=4000000 --num-threads=4 --mysql-db=sbtest_zip --mysql-socket=/tmp/mysql.sock run