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 <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Corey Ashford <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Andrew Jones <[email protected]> Cc: David Ahern <[email protected]> --- 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 [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
