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Hi,

I am trying to find the number of cache misses that are caused by my code. The best way I could find was to use the perf command. After running command: perf stat dd if=/dev/zero of=/dev/null...

Thanks admin_xor,

This is of good help. I think the read_bytes does not consider the buffer cache. rchar does. Also, I need to consider the rate at which the count values are changing. I have a...

Hi,

I am using iostat and /proc/<pid>/status to determine the disk usage per process. I have a question regarding buffer cache. When I am reading a 10MB file, the counters I get show that <5MB of...

Thanks Corona.

Yes, the same problem occurs. If I login with correctuser@host, the username displayed is wronguser.

I think I figured the problem - it is because of conflicting uids. I changed...

Hello All,

When I try to ssh to a machine, I can ssh, but the username changes to "libuuid". Initially, if I close the terminal tab and ssh again, I could ssh with correct username but now, after...

Thanks Jim!

I figured out the -o option yesterday. stap writes to a file that is read by my perl script to process the data. In doing so, sometimes, stap dies immediately after I start my perl...

Hi,

I am a newbie to the systemtap. I was wondering is there a way I can write the data to file instead of printing on the screen. This way, I can process the systemtap output periodically using...