我为MongoDB运行YCSB。
这是我的结果：
./bin/ycsb run mongodb -s -P workloads/workloada > my_run.dat
Loading workload...
Starting test.
0 sec: 0 operations;
10 sec: 16690 operations; 1657.07 current ops/sec; [READ AverageLatency(us)=490.92] [UPDATE AverageLatency(us)=654.23]
20 sec: 34651 operations; 1784.68 current ops/sec; [READ AverageLatency(us)=489.92] [UPDATE AverageLatency(us)=612.62]
30 sec: 53152 operations; 1848.99 current ops/sec; [READ AverageLatency(us)=490.31] [UPDATE AverageLatency(us)=577.33]
40 sec: 69624 operations; 1645.55 current ops/sec; [READ AverageLatency(us)=538.23] [UPDATE AverageLatency(us)=661.69]
50 sec: 87998 operations; 1836.67 current ops/sec; [READ AverageLatency(us)=486.72] [UPDATE AverageLatency(us)=590.1]
60 sec: 105686 operations; 1768.62 current ops/sec; [READ AverageLatency(us)=507.04] [UPDATE AverageLatency(us)=611.8]
70 sec: 125513 operations; 1982.7 current ops/sec; [READ AverageLatency(us)=451.16] [UPDATE AverageLatency(us)=546.62]
80 sec: 144607 operations; 1909.21 current ops/sec; [READ AverageLatency(us)=471.99] [UPDATE AverageLatency(us)=565.08]
90 sec: 162982 operations; 1836.95 current ops/sec; [READ AverageLatency(us)=479.93] [UPDATE AverageLatency(us)=598.32]
100 sec: 182047 operations; 1906.31 current ops/sec; [READ AverageLatency(us)=464.83] [UPDATE AverageLatency(us)=573.04]
110 sec: 200449 operations; 1837.81 current ops/sec; [READ AverageLatency(us)=482.29] [UPDATE AverageLatency(us)=593.68]
120 sec: 219938 operations; 1948.71 current ops/sec; [READ AverageLatency(us)=450.92] [UPDATE AverageLatency(us)=565.71]
130 sec: 238601 operations; 1866.11 current ops/sec; [READ AverageLatency(us)=470.68] [UPDATE AverageLatency(us)=591.11]
140 sec: 259370 operations; 2076.69 current ops/sec; [READ AverageLatency(us)=423.18] [UPDATE AverageLatency(us)=529.47]
150 sec: 280439 operations; 2106.69 current ops/sec; [READ AverageLatency(us)=427.67] [UPDATE AverageLatency(us)=511.45]
160 sec: 300454 operations; 2001.3 current ops/sec; [READ AverageLatency(us)=443.84] [UPDATE AverageLatency(us)=536.78]
170 sec: 320651 operations; 2019.5 current ops/sec; [READ AverageLatency(us)=441.01] [UPDATE AverageLatency(us)=550.97]
180 sec: 339846 operations; 1919.31 current ops/sec; [READ AverageLatency(us)=467.42] [UPDATE AverageLatency(us)=564.23]
190 sec: 358263 operations; 1839.13 current ops/sec; [READ AverageLatency(us)=479.94] [UPDATE AverageLatency(us)=595.92]
200 sec: 377686 operations; 1941.72 current ops/sec; [READ AverageLatency(us)=457.56] [UPDATE AverageLatency(us)=561.6]
210 sec: 398299 operations; 2060.89 current ops/sec; [READ AverageLatency(us)=433.26] [UPDATE AverageLatency(us)=526.97]
220 sec: 416290 operations; 1798.92 current ops/sec; [READ AverageLatency(us)=495.91] [UPDATE AverageLatency(us)=604.73]
230 sec: 436193 operations; 1989.11 current ops/sec; [READ AverageLatency(us)=451.31] [UPDATE AverageLatency(us)=543.84]
240 sec: 457690 operations; 2149.49 current ops/sec; [READ AverageLatency(us)=411.25] [UPDATE AverageLatency(us)=508.66]
250 sec: 476801 operations; 1910.91 current ops/sec; [READ AverageLatency(us)=452.22] [UPDATE AverageLatency(us)=583.65]
260 sec: 494604 operations; 1780.12 current ops/sec; [READ AverageLatency(us)=497.51] [UPDATE AverageLatency(us)=612.22]
270 sec: 515721 operations; 2111.49 current ops/sec; [READ AverageLatency(us)=419.5] [UPDATE AverageLatency(us)=518.25]
280 sec: 533880 operations; 1815.54 current ops/sec; [READ AverageLatency(us)=486.85] [UPDATE AverageLatency(us)=604.71]
290 sec: 553822 operations; 1994 current ops/sec; [READ AverageLatency(us)=444.74] [UPDATE AverageLatency(us)=548.16]
300 sec: 576101 operations; 2227.01 current ops/sec; [READ AverageLatency(us)=398.8] [UPDATE AverageLatency(us)=489.87]
310 sec: 594411 operations; 1826.43 current ops/sec; [READ AverageLatency(us)=472.85] [UPDATE AverageLatency(us)=610.28]
313 sec: 600000 operations; 1792.5 current ops/sec; [READ AverageLatency(us)=496.76] [UPDATE AverageLatency(us)=602.38]
然后是输出文件：
YCSB Client 0.1
Command line: -db com.yahoo.ycsb.db.MongoDbClient -s -P workloads/workloada -t
new database url = 172.17.0.13:27017/test
mongo connection created with 172.17.0.13:27017/test
[OVERALL], RunTime(ms), 313358.0
[OVERALL], Throughput(ops/sec), 1914.7428819433364
[READ], Operations, 299981
[READ], AverageLatency(us), 462.1898386897837
[READ], MinLatency(us), 88
[READ], MaxLatency(us), 35020
[READ], 95thPercentileLatency(ms), 1
[READ], 99thPercentileLatency(ms), 2
[READ], Return=0, 299981
[READ], 0, 278042
[READ], 1, 18615
[READ], 2, 2170
[READ], 3, 493
[READ], 4, 264
[READ], 5, 120
[READ], 6, 81
[READ], 7, 37
[READ], 8, 27
[READ], 9, 14
[READ], 10, 14
[READ], 11, 13
[READ], 12, 14
[READ], 13, 8
[READ], 14, 15
[READ], 15, 14
[READ], 16, 15
[READ], 17, 9
[READ], 18, 4
[READ], 19, 1
[READ], 20, 4
[READ], 21, 1
[READ], 22, 2
[READ], 23, 1
[READ], 24, 0
[READ], 25, 0
[READ], 26, 0
[READ], 27, 0
[READ], 28, 0
[READ], 29, 0
[READ], 30, 0
[READ], 31, 1
[READ], 32, 1
[READ], 33, 0
[READ], 34, 0
[READ], 35, 1
[READ], 36, 0
[READ], 37, 0
[READ], 38, 0
[READ], 39, 0
[READ], 40, 0
[READ], 41, 0
[READ], 42, 0
[READ], 43, 0
[READ], 44, 0
[READ], 45, 0
[READ], 46, 0
[READ], 47, 0
我想要这样画 http://i.imgur.com/BWTLydi.jpg
但是，我对结果的输出感到困惑。不确定＆＃34;吞吐量＆＃34;因为数字意味着结果。 此外，对于
10 sec: 16690 operations; 1657.07 current ops/sec;
这不是1657.07 * 10（秒）= 16570.7操作吗？
答案 0 :(得分：0)
我认为第一个数字是过去十秒内完成的操作次数。第二个是过去第二个的操作次数。操作次数从第二到第二不等，因此10 *当前操作/秒不一定是过去10秒内的操作次数。平均而言，在过去十秒内平均每秒操作次数高于该特定秒数，因为16690/10> 1657.07。
答案 1 :(得分：0)
阅读YCSB wiki的this section以了解如何解释结果。
更具体地说，您的第一个片段基本上是'-s'开关打开的瞬时输出。我不确定YCSB，但通常在性能测试中，这样的瞬时结果仅仅是指标，不应该被接受为非常准确。
现在，进入要绘制的图（跨多个数据库提供程序的给定工作负载的吞吐量与延迟），您需要使用'-target'switch available in YCSB。使用该交换机改变吞吐量，捕获最终日志输出，然后将95％或99％百分比延迟数据与目标吞吐量进行映射，可以为您提供所需的绘图。
希望这有帮助。
除此之外：性能运行应该有足够长的运行时间。由于无数原因，只能运行5分钟的性能测试结果可能会被取消资格。加载足够的数据（YCSB的recordcount属性），然后将ops（operationcount属性）设置为足够大的数字，以便测试运行至少30分钟。