Hi, I did Apache benchmark and collected the performance results at the file system call level. The microbenchmark results were collected when I did "make" on Apache source code. The results are very interesting: open read Total Time (s) 21.599 15.948 Count 310274 98028 Time/Call (ms) 69.61 162.69 The results show that NFS spent even more time on file open than on file read. But this result confuses me: what does NFS do to open a file? As far as I know, it just issues a lookup() RPC to get file handle, and maybe a getattr() RPC to get file attributes. This should not take so much time. Can someone explain why this could happen? Thanks, -x - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
