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(parent: 844282d) | patch
ring-buffer: Add percentage of ring buffer full to wake up reader
authorSteven Rostedt (VMware) <rostedt@goodmis.org>
Fri, 30 Nov 2018 01:32:26 +0000 (20:32 -0500)
committerSteven Rostedt (VMware) <rostedt@goodmis.org>
Sun, 9 Dec 2018 01:54:08 +0000 (20:54 -0500)
commit57a63d9503ffbde5a07ff99610edc1a7eb6bfbfd
tree4ffbcfc1abdc5569e7f444425c86948f1cd2426ctree | snapshot
parent844282dabfb6c4995290ac57de75fd40ce0e82e9commit | diff
ring-buffer: Add percentage of ring buffer full to wake up reader

Instead of just waiting for a page to be full before waking up a pending
reader, allow the reader to pass in a "percentage" of pages that have
content before waking up a reader. This should help keep the process of
reading the events not cause wake ups that constantly cause reading of the
buffer.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
include/linux/ring_buffer.h diff | blob | history
kernel/trace/ring_buffer.c diff | blob | history
kernel/trace/trace.c diff | blob | history
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