Dave Hall
Binghamton University
kdhall@xxxxxxxxxxxxxx
607-760-2328 (Cell)
607-777-4641 (Office)
On 03/16/2013 03:21 AM, Dave Chinner wrote:
Using perf to profile the kernel while the cp -al workload is
running will tell use exactly where the CPU is being burnt. That
will confirm the analysis, or point us at some other issue that is
causing excessive CPU burn...
Dave, which perf command(s) would you like me to run. (I'm familiar
with the concept behind this kind of tool, but I haven't worked with
this one before).
Also, what would you like me to do with the xfs_db freesp output for 26
agroups?
-Dave
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