1*4882a593Smuzhiyunperf-help(1) 2*4882a593Smuzhiyun============ 3*4882a593Smuzhiyun 4*4882a593SmuzhiyunNAME 5*4882a593Smuzhiyun---- 6*4882a593Smuzhiyunperf-help - display help information about perf 7*4882a593Smuzhiyun 8*4882a593SmuzhiyunSYNOPSIS 9*4882a593Smuzhiyun-------- 10*4882a593Smuzhiyun'perf help' [-a|--all] [COMMAND] 11*4882a593Smuzhiyun 12*4882a593SmuzhiyunDESCRIPTION 13*4882a593Smuzhiyun----------- 14*4882a593Smuzhiyun 15*4882a593SmuzhiyunWith no options and no COMMAND given, the synopsis of the 'perf' 16*4882a593Smuzhiyuncommand and a list of the most commonly used perf commands are printed 17*4882a593Smuzhiyunon the standard output. 18*4882a593Smuzhiyun 19*4882a593SmuzhiyunIf the option '--all' or '-a' is given, then all available commands are 20*4882a593Smuzhiyunprinted on the standard output. 21*4882a593Smuzhiyun 22*4882a593SmuzhiyunIf a perf command is named, a manual page for that command is brought 23*4882a593Smuzhiyunup. The 'man' program is used by default for this purpose, but this 24*4882a593Smuzhiyuncan be overridden by other options or configuration variables. 25*4882a593Smuzhiyun 26*4882a593SmuzhiyunNote that `perf --help ...` is identical to `perf help ...` because the 27*4882a593Smuzhiyunformer is internally converted into the latter. 28*4882a593Smuzhiyun 29*4882a593SmuzhiyunOPTIONS 30*4882a593Smuzhiyun------- 31*4882a593Smuzhiyun-a:: 32*4882a593Smuzhiyun--all:: 33*4882a593Smuzhiyun Prints all the available commands on the standard output. This 34*4882a593Smuzhiyun option supersedes any other option. 35*4882a593Smuzhiyun 36*4882a593SmuzhiyunPERF 37*4882a593Smuzhiyun---- 38*4882a593SmuzhiyunPart of the linkperf:perf[1] suite 39