Adding -D option into the rwtop record command line, to get immediate response when there's event in the buffer.
Otherwise we need to wait till half of the buffer is filled, which is the default wattermark if it's not set. Suggested-by: Andrew Jones <drjo...@redhat.com> Signed-off-by: Jiri Olsa <jo...@redhat.com> Cc: Arnaldo Carvalho de Melo <a...@ghostprotocols.net> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Cc: Ingo Molnar <mi...@elte.hu> Cc: Paul Mackerras <pau...@samba.org> Cc: Corey Ashford <cjash...@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweis...@gmail.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Andrew Jones <drjo...@redhat.com> Cc: David Ahern <dsah...@gmail.com> --- tools/perf/scripts/perl/bin/rwtop-record | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/scripts/perl/bin/rwtop-record b/tools/perf/scripts/perl/bin/rwtop-record index 7cb9db2..e4ec090 100644 --- a/tools/perf/scripts/perl/bin/rwtop-record +++ b/tools/perf/scripts/perl/bin/rwtop-record @@ -1,2 +1,2 @@ #!/bin/bash -perf record -e syscalls:sys_enter_read -e syscalls:sys_exit_read -e syscalls:sys_enter_write -e syscalls:sys_exit_write $@ +perf record -e syscalls:sys_enter_read -e syscalls:sys_exit_read -e syscalls:sys_enter_write -e syscalls:sys_exit_write -D $@ -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
