我正在使用 YCSB 对许多不同的 NoSQL 数据库进行基准测试。但是，在处理客户端线程的数量时，我很难解释吞吐量与延迟的结果。
例如，当使用 16 个客户端线程对 cassandra 运行工作负载 a（50/50 读取和更新）进行基准测试时，将执行以下命令：
bin/ycsb run cassandra-cql -p hosts=xx.xx.xx.xx -p recordcount=525600 -p operationcount=525600 -threads 16 -P workloads/workloada -s > workloada_525600_16_threads_run_res.txt
这给出了以下输出：
[OVERALL], RunTime(ms), 62751
[OVERALL], Throughput(ops/sec), 8375.962136061577
[TOTAL_GCS_PS_Scavenge], Count, 64
[TOTAL_GC_TIME_PS_Scavenge], Time(ms), 289
[TOTAL_GC_TIME_%_PS_Scavenge], Time(%), 0.46055042947522745
[TOTAL_GCS_PS_MarkSweep], Count, 0
[TOTAL_GC_TIME_PS_MarkSweep], Time(ms), 0
[TOTAL_GC_TIME_%_PS_MarkSweep], Time(%), 0.0
[TOTAL_GCs], Count, 64
[TOTAL_GC_TIME], Time(ms), 289
[TOTAL_GC_TIME_%], Time(%), 0.46055042947522745
[READ], Operations, 262650
[READ], AverageLatency(us), 1844.6075042832667
[READ], MinLatency(us), 290
[READ], MaxLatency(us), 116159
[READ], 95thPercentileLatency(us), 3081
[READ], 99thPercentileLatency(us), 7551 …