??????????
????????????Σ?
NinGoo:/u01/sysbench/bin>$sysbench --test=threads --num-threads=64 --thread-yields=100
--thread-locks=2 run
sysbench 0.4.12:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 64

Doing thread subsystem performance test
Thread yields per test: 100 Locks used: 2
Threads started!
Done.

Test execution summary:
    total time:                          4.3925s
    total number of events:              10000
    total time taken by event execution: 280.4418
    per-request statistics:
         min:                                  0.04ms
         avg:                                 28.04ms
         max:                                 72.81ms
         approx.  95 percentile:              52.29ms

Threads fairness:
    events (avg/stddev):           156.2500/1.43
    execution time (avg/stddev):   4.3819/0.01

???????IO???????

???????????????????????????????С300M??16???????????????д??????????????????????????С?????
????????????Σ?
NinGoo:/u01/sysbench/bin>$sysbench --test=fileio --num-threads=16 
--file-total-size=300M --file-test-mode=rndrw prepare
sysbench 0.4.12:  multi-threaded system evaluation benchmark

128 files?? 2400Kb each?? 300Mb total
Creating files for the test...

??????в???
????????????Σ?
NinGoo:/u01/sysbench/bin>$sysbench --test=fileio --num-threads=16 
--file-total-size=300M --file-test-mode=rndrw run
sysbench 0.4.12:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 16

Extra file open flags: 0
128 files?? 2.3438Mb each
300Mb total file size
Block size 16Kb
Number of random requests for random IO: 10000
Read/Write ratio for combined random IO test: 1.50
Periodic FSYNC enabled?? calling fsync() each 100 requests.
Calling fsync() at the end of test?? Enabled.
Using synchronous I/O mode
Doing random r/w test
Threads started!
Done.

Operations performed:  5996 Read?? 4004 Write?? 12800 Other = 22800 Total
Read 93.688Mb  Written 62.562Mb  Total transferred 156.25Mb  (26.713Mb/sec)
 1709.66 Requests/sec executed

Test execution summary:
    total time:                          5.8491s
    total number of events:              10000
    total time taken by event execution: 12.5045
    per-request statistics:
         min:                                  0.01ms
         avg:                                  1.25ms
         max:                                373.28ms
         approx.  95 percentile:               0.03ms

Threads fairness:
    events (avg/stddev):           625.0000/109.60
    execution time (avg/stddev):   0.7815/0.29