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Commit aa93d9fb authored by Brendan Gregg's avatar Brendan Gregg
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remove vfs copy-n-paste extras

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man/man8/funccount.8
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...@@ -64,12 +64,10 @@ COUNT ...@@ -64,12 +64,10 @@ COUNT
Number of calls while tracing Number of calls while tracing
.SH OVERHEAD .SH OVERHEAD
This traces kernel functions and maintains in-kernel counts, which This traces kernel functions and maintains in-kernel counts, which
are asynchronously copied to user-space. While the rate of VFS operations can are asynchronously copied to user-space. While the rate of kernel calls
be very high (>1M/sec), this is a relatively efficient way to trace these be very high (>1M/sec), this is a relatively efficient way to trace these
events, and so the overhead is expected to be small for normal workloads. events, and so the overhead is expected to be small for normal workloads.
Measure in a test environment, and if overheads are an issue, edit the script Measure in a test environment before use.
to reduce the types of vfs functions traced (currently all beginning with
"vfs_").
.SH SOURCE .SH SOURCE
This is from bcc. This is from bcc.
.IP .IP
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