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oprofile
a low-overhead system-wide profiler
Resources
Mini Howto
From linux-cluster mailing list
- Obtain a script called "opreport_module" in Will's people page; put it into /tmp and chmod +x.
- opcontrol --init
- opcontrol --setup --vmlinux=/usr/lib/debug/lib/modules/`uname -r`/vmlinux
- opcontrol --start
- (run your ls here)
- opcontrol --dump
- opcontrol --shutdown
- opreport --long-filenames (pipe this output to a file and email me)
- /tmp/opreport_module /gfs (pipe this output to a file and email me).
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