Tag Archives: perf

Using “sysbench” to test memory performance

Sysbench is a powerful testing tool for CPU / Memory / Mysql etc. Three years ago, I used to test performance of MYSQL by using it. Yesterday, I used Sysbench to test memory bandwidth of my server. By using command:

It reported the memory bandwidth could reach 8.4GB/s, which… Read more »

Perf to the detail of stack frame

Use perf to profile the redis daemon

The report shows:

I could only see that function “ziplistFind” is very hot in redis but I can’t see how the code routine reaches the “ziplistFind”. By searching around I find this article. So I use perf as:

The report… Read more »