• line：V1.1
• mail: [email protected]
• date: 2017-11-17

一、Sysench測試前準備

1.1、壓測環境

1.2、壓測基準值

二、進行OLTP_IO測試

2.1、安裝壓測工具sysbench

• 標準安裝

[root@localhost-m
 
(252) /r2/soft/dbtest] curl -s https://packagecloud.io/install/repositories/akopytov/sysbench/script.rpm.sh | sudo bash &&
sudo yum -y install sysbench

2.2、執行壓測

• 2.2.1 創建128個表，並發線程數24個，總數據量128G

[root@localhost-m(252) /r2/soft/sysbench]# sysbench  --threads=24 --test=fileio --file-total-size=128G --file-test-mode=rndrw prepare
WARNING
 
: the --test option is deprecated. You can pass a script name or path on the command line without any options.
sysbench 1.1.0-0167e45 (using bundled LuaJIT 2.1.0-beta3)

128 files, 1048576Kb each, 131072Mb total
Creating files for the test...
Extra file open flags: 0
Creating file test_file.0
......
Creating file test_file.127

• 2.2.2 進行fileio(rndrw隨機讀寫)測試

[root@localhost-m(252) /r2/soft/sysbench]# sysbench fileio > --time=180 > --events=100000000 > --threads=24 > --file-total-size=128G > --file-test-mode=rndrw > --file-num=128 > --file-extra-flags=direct > --file-fsync-freq=0 > --file-block-size=16384 > run
sysbench 1.1.0-0167e45 (using bundled LuaJIT 2.1.0-beta3)

Running the test with following options:
Number of threads: 24
Initializing random number generator from current time


Extra file open flags: 3
128 files, 1GiB each
128GiB total file size
Block size 16KiB
Number of IO requests: 100000000
Read/Write ratio for combined random IO test: 1.50
Calling fsync() at the end of test, Enabled.
Using synchronous I/O mode
Doing random r/w test
Initializing worker threads...

Threads started!


Throughput:
         read:  IOPS=334.56 5.23 MiB/s (5.48 MB/s)
         write: IOPS=223.03 3.48 MiB/s (3.65 MB/s)
         fsync: IOPS=0.00

Latency (ms):
         min:                                  0.18
         avg:                                 42.99
         max:                               1329.63
         95th percentile:                    189.93
         sum:                            4320920.09

• 2.2.3 進行fileio(rndwr隨機寫)測試

[root@localhost-m(252) /r2/soft/sysbench]# sysbench fileio --time=180 --events=100000000 --threads=24 --file-total-size=128G --file-test-mode=rndwr --file-num=128 --file-extra-flags=direct--file-fsync-freq=0 --file-block-size=16384 run
sysbench 1.1.0-0167e45 (using bundled LuaJIT 2.1.0-beta3)

Running the test with following options:
Number of threads: 24
Initializing random number generator from current time


Extra file open flags: 3
128 files, 1GiB each
128GiB total file size
Block size 16KiB
Number of IO requests: 100000000
Read/Write ratio for combined random IO test: 1.50
Calling fsync() at the end of test, Enabled.
Using synchronous I/O mode
Doing random write test
Initializing worker threads...

Threads started!


Throughput:
         read:  IOPS=0.00 0.00 MiB/s (0.00 MB/s)
         write: IOPS=389.35 6.08 MiB/s (6.38 MB/s)
         fsync: IOPS=0.00

Latency (ms):
         min:                                  0.16
         avg:                                 61.63
         max:                               1361.51
         95th percentile:                    108.68
         sum:                            4320453.91

• 2.2.4 進行fileio(rndrd隨機讀)測試

[root@localhost-m(252) /r2/soft/sysbench]# sysbench fileio --time=180 --events=100000000 --threads=24 --file-total-size=128G --file-test-mode=rndrd --file-num=128 --file-extra-flags=direct--file-fsync-freq=0 --file-block-size=16384 run
sysbench 1.1.0-0167e45 (using bundled LuaJIT 2.1.0-beta3)

Running the test with following options:
Number of threads: 24
Initializing random number generator from current time


Extra file open flags: 3
128 files, 1GiB each
128GiB total file size
Block size 16KiB
Number of IO requests: 100000000
Read/Write ratio for combined random IO test: 1.50
Calling fsync() at the end of test, Enabled.
Using synchronous I/O mode
Doing random read test
Initializing worker threads...

Threads started!


Throughput:
         read:  IOPS=697.23 10.89 MiB/s (11.42 MB/s)
         write: IOPS=0.00 0.00 MiB/s (0.00 MB/s)
         fsync: IOPS=0.00

Latency (ms):
         min:                                  0.41
         avg:                                 34.41
         max:                                737.43
         95th percentile:                    114.72
         sum:                            4320295.10

2.3、 執行結果

• 分別進行rndrw（隨機讀寫）、rndwr（隨機寫）、rndrd （隨機讀）各3分鐘，如圖R2目錄（/dev/sdl）IOPS:
  • rndrw（隨機讀寫）平均讀iops：334，平均寫iops：223
  • rndwr（隨機寫）平均寫iops：389.35
  • rndwr（隨機讀）平均讀iops：697.23

2.4、 清除生成的數據

[root@localhost-m(252) /r2/soft/sysbench]# sysbench  --threads=24 --test=fileio --file-total-size=128G --file-test-mode=rndrw cleanup
WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any options.
sysbench 1.1.0-0167e45 (using bundled LuaJIT 2.1.0-beta3)

Removing test files...

Sysbench 基準壓測 IO篇