申威下单盘SSD与四块盘RAID5的性能测试结果

申威下单盘SSD与四块盘RAID5的性能测试结果

背景

背景不在说了 申威服务器..

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结论

天坑
做了raid写入性能下降明显.
充分怀疑驱动不行. 

四快盘的raid5 跟单盘的读几乎没区别.
感觉这个设置太失败了.
总体的结果为:
读的情况合计都为 70k
但是写入的情况  RAID卡不足30K的IOPS
单盘可以达到 66k.  

另外也加急验证了一把sysbench:
单盘比raid卡要好.

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读的测试结果

测试项目	Raid卡	单SSD盘
read128k	8801	3914
randread128k	2575	2768
read16k	13800	13600
randread16k	5331	6272
read8k	13300	14600
randread8k	6556	7411
read1k	14400	14400
randread1k	7425	8366

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写的测试结果

测试项目	Raid卡	单SSD盘
write128k	1530	2586
randwrite128k	1172	2670
write16k	3528	8607
randwrite16k	2991	8623
write8k	4413	10500
randwrite8k	3729	10100
write1k	5692	11900
randwrite1k	4189	11200

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sysbench的测试结果

硬盘方式	测试结果
Raid卡	1040
单盘SSD	1114

性能测试-单盘SSD验证

write128k
  write: IOPS=2586, BW=323MiB/s (339MB/s)(4096MiB/12669msec)
read128k
   read: IOPS=3914, BW=489MiB/s (513MB/s)(4096MiB/8371msec)
randwrite128k
  write: IOPS=2670, BW=334MiB/s (350MB/s)(4096MiB/12272msec)
randread128k
   read: IOPS=2768, BW=346MiB/s (363MB/s)(4096MiB/11835msec)
write16k
  write: IOPS=8607, BW=134MiB/s (141MB/s)(4035MiB/30001msec)
read16k
   read: IOPS=13.6k, BW=213MiB/s (223MB/s)(4096MiB/19265msec)
randwrite16k
  write: IOPS=8623, BW=135MiB/s (141MB/s)(4042MiB/30001msec)
randread16k
   read: IOPS=6272, BW=98.0MiB/s (103MB/s)(2940MiB/30001msec)
write8k
  write: IOPS=10.5k, BW=81.0MiB/s (85.0MB/s)(2460MiB/30001msec)
read8k
   read: IOPS=14.6k, BW=114MiB/s (119MB/s)(3414MiB/30001msec)
randwrite8k
  write: IOPS=10.1k, BW=78.9MiB/s (82.7MB/s)(2366MiB/30001msec)
randread8k
   read: IOPS=7411, BW=57.9MiB/s (60.7MB/s)(1737MiB/30001msec)
write1k
  write: IOPS=11.9k, BW=11.6MiB/s (12.1MB/s)(348MiB/30001msec)
read1k
   read: IOPS=14.4k, BW=14.1MiB/s (14.8MB/s)(423MiB/30001msec)
randwrite1k
  write: IOPS=11.2k, BW=10.9MiB/s (11.4MB/s)(327MiB/30001msec)
randread1k
   read: IOPS=8366, BW=8366KiB/s (8567kB/s)(245MiB/30001msec)

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性能测试-四SSD 9361 8i Raid5验证

write128k
  write: IOPS=1530, BW=191MiB/s (201MB/s)(4096MiB/21414msec)
read128k
   read: IOPS=8801, BW=1100MiB/s (1154MB/s)(4096MiB/3723msec)
randwrite128k
  write: IOPS=1172, BW=147MiB/s (154MB/s)(4096MiB/27944msec)
randread128k
   read: IOPS=2575, BW=322MiB/s (338MB/s)(4096MiB/12725msec)
write16k
  write: IOPS=3528, BW=55.1MiB/s (57.8MB/s)(1654MiB/30001msec)
read16k
   read: IOPS=13.8k, BW=215MiB/s (225MB/s)(4096MiB/19056msec)
randwrite16k
  write: IOPS=2991, BW=46.7MiB/s (49.0MB/s)(1402MiB/30001msec)
randread16k
   read: IOPS=5331, BW=83.3MiB/s (87.4MB/s)(2499MiB/30001msec)
write8k
  write: IOPS=4413, BW=34.5MiB/s (36.2MB/s)(1034MiB/30001msec)
read8k
   read: IOPS=13.3k, BW=104MiB/s (109MB/s)(3124MiB/30001msec)
randwrite8k
  write: IOPS=3729, BW=29.1MiB/s (30.6MB/s)(874MiB/30001msec)
randread8k
   read: IOPS=6556, BW=51.2MiB/s (53.7MB/s)(1537MiB/30001msec)
write1k
  write: IOPS=5692, BW=5692KiB/s (5829kB/s)(167MiB/30001msec)
read1k
   read: IOPS=14.4k, BW=14.1MiB/s (14.8MB/s)(423MiB/30001msec)
randwrite1k
  write: IOPS=4189, BW=4189KiB/s (4290kB/s)(123MiB/30001msec)
randread1k
   read: IOPS=7425, BW=7426KiB/s (7604kB/s)(218MiB/30001msec)

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单盘SSD的sysbench

SQL statistics:
    queries performed:
        read:                            936796
        write:                           267656
        other:                           133828
        total:                           1338280
    transactions:                        66914  (1114.91 per sec.)
    queries:                             1338280 (22298.23 per sec.)
    ignored errors:                      0      (0.00 per sec.)
    reconnects:                          0      (0.00 per sec.)

General statistics:
    total time:                          60.0116s
    total number of events:              66914

Latency (ms):
         min:                                    7.76
         avg:                                    8.96
         max:                                  160.74
         99th percentile:                       14.21
         sum:                               599690.88

Threads fairness:
    events (avg/stddev):           6691.4000/68.50
    execution time (avg/stddev):   59.9691/0.00

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Raid卡 四块SSD的 sysbench

SQL statistics:
    queries performed:
        read:                            1748964
        write:                           499698
        other:                           249854
        total:                           2498516
    transactions:                        124924 (1040.88 per sec.)
    queries:                             2498516 (20817.94 per sec.)
    ignored errors:                      2      (0.02 per sec.)
    reconnects:                          0      (0.00 per sec.)

General statistics:
    total time:                          120.0118s
    total number of events:              124924

Latency (ms):
         min:                                    8.02
         avg:                                    9.60
         max:                                  176.96
         99th percentile:                       19.29
         sum:                              1199283.15

Threads fairness:
    events (avg/stddev):           12492.4000/82.12
    execution time (avg/stddev):   119.9283/0.00