trace: update old trace events in docs
Commit c5f1ad429c
("block: Remove
bdrv_aio_readv/writev/flush()") removed
bdrv_aio_readv()/bdrv_aio_writev() so the example in the tracing
documentation is no longer valid.
Reported-by: Wang Dong <dongdwdw@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20170714133111.27359-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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@ -14,8 +14,7 @@ for debugging, profiling, and observing execution.
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2. Create a file with the events you want to trace:
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2. Create a file with the events you want to trace:
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echo bdrv_aio_readv > /tmp/events
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echo memory_region_ops_read >/tmp/events
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echo bdrv_aio_writev >> /tmp/events
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3. Run the virtual machine to produce a trace file:
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3. Run the virtual machine to produce a trace file:
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