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mysql自带的性能和压力测试工具:mysqlslap 里面的参数及结果是什么含义?
User time 6.50, System time 4.95
Maximum resident set size 0, Integral resident set size 0
Non-physical pagefaults 130258, Physical pagefaults 0, Swaps 0
Blocks in 0 out 0, Messages in 0 out 0, Signals 0
Voluntary context switches 122508, Involuntary context switches 49407
ps:单台mysql一般支持多达的并发?