使用trace-cmd有的时候没有来得及使用ctrl+c, 导致出现多个trace.dat.cpu*, 可以使用下面的办法来手动合并trace.dat
If a crash happened on another box, you could run: $ trace-cmd restore -c -o box-partial.dat Then on the server that has the cpu files: $ trace-cmd restore -i box-partial.dat trace.dat.cpu0 trace.dat.cpu1 This would create a trace.dat file for the embedded box.