From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933477AbbFVLbN (ORCPT ); Mon, 22 Jun 2015 07:31:13 -0400 Received: from mailout2.samsung.com ([203.254.224.25]:41461 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756162AbbFVLa7 (ORCPT ); Mon, 22 Jun 2015 07:30:59 -0400 X-AuditID: cbfee690-f796f6d000005054-1c-5587f1f06f6f From: Umesh Tiwari To: rostedt@goodmis.org, mingo@redhat.com, linux-kernel@vger.kernel.org Cc: gupta.namit@samsung.com, pankaj.m@samsung.com, Himanshu Maithani , Umesh Tiwari Subject: [PATCH] ftrace: add tracing_thresh to function profile Date: Mon, 22 Jun 2015 16:58:08 +0530 Message-id: <1434972488-8571-1-git-send-email-umesh.t@samsung.com> X-Mailer: git-send-email 1.7.9.5 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrHLMWRmVeSWpSXmKPExsWyRsSkTvfjx/ZQg39nuCwOHjjNajGv5TyL xeVdc9gsLh1YwGRx781WJot9HQ+YLGb8vMLowO7Rsu8Wu8f7fVfZPPq2rGL0+LxJLoAlissm JTUnsyy1SN8ugStj5uYz7AUNnBVTNh5gbWBcw97FyMkhIWAisevrViYIW0ziwr31bF2MXBxC AksZJf7PfQVX9GrdXBaIxHRGiftvG9khnJ+MEg/+XmMGqWIT0JA4dLiNDcQWEXCXmHzsPRNI EbNAM6PE5s59QO0cHMIC9hKfFjiB1LAIqEr8P36JFcTmFXCSeLf1DFiJhICCxJxJNiCtEgK/ 2SQufZzFBFEvIPFt8iGoGlmJTQeYIY6TlDi44gbLBEbBBYwMqxhFUwuSC4qT0otM9IoTc4tL 89L1kvNzNzECg/X0v2cTdjDeO2B9iFGAg1GJhzfgYXuoEGtiWXFl7iFGU6ANE5mlRJPzgTGR VxJvaGxmZGFqYmpsZG5ppiTO+1rqZ7CQQHpiSWp2ampBalF8UWlOavEhRiYOTqkGRr+Obz/1 Vxdc23RZ0uSKx9587myRpONGe3O3FYYuueB4gUMhZUHDQaGmA6mPs7v6V5uGvMz2t6vLNbkU VllsJsOz6/qBe0dkndfUTTm0UObH3ceyGnaVsdf4/77dJBrEzDOjI6J7sTyrZPEGru8GjJcC 3sRt5RE5z/f1wibWS182lRw/I6VZpsRSnJFoqMVcVJwIALYm6MVRAgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupgkeLIzCtJLcpLzFFi42I5/e+xoO6Hj+2hBj03LS0OHjjNajGv5TyL xeVdc9gsLh1YwGRx781WJot9HQ+YLGb8vMLowO7Rsu8Wu8f7fVfZPPq2rGL0+LxJLoAlqoHR JiM1MSW1SCE1Lzk/JTMv3VbJOzjeOd7UzMBQ19DSwlxJIS8xN9VWycUnQNctMwfoBCWFssSc UqBQQGJxsZK+HaYJoSFuuhYwjRG6viFBcD1GBmggYQ1jxszNZ9gLGjgrpmw8wNrAuIa9i5GT Q0LAROLVurksELaYxIV769m6GLk4hASmM0rcf9vIDuH8ZJR48PcaM0gVm4CGxKHDbWwgtoiA u8TkY++ZQIqYBZoZJTZ37gMaxcEhLGAv8WmBE0gNi4CqxP/jl1hBbF4BJ4l3W8+AlUgIKEjM mWQzgZF7ASPDKkbR1ILkguKk9FxDveLE3OLSvHS95PzcTYzgWHgmtYNxZYPFIUYBDkYlHt4d wBgRYk0sK67MPcQowcGsJMLbchYoxJuSWFmVWpQfX1Sak1p8iNEUaPlEZinR5HxgnOaVxBsa m5ibGptamliYmFkqifOezPcJFRJITyxJzU5NLUgtgulj4uCUamCMmvaEzeRW3vE/wvxMcy5O Dwl5IKoiUvVUuX/VxClB/W/+6ufUsddtmWSf0CSid23JovlsvxYc5Piom/D/gqnfDuMLSTIn L8urvT3On9Vm7fq8ndNOcOPHlab1R9ldfHp+O/t/XfOCrav8646l76Sz5yopf/bW38DY+nD/ ir7Ke+9W3Lw83e+oEktxRqKhFnNRcSIAnqVMa5sCAAA= DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Himanshu Maithani This patch extends tracing_thresh functionality to function profile tracer. If tracing_thresh is set, print those entries only, whose average is > tracing thresh. Signed-off-by: Umesh Tiwari --- kernel/trace/ftrace.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 4f22802..7a48a67 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -600,13 +600,19 @@ static int function_stat_show(struct seq_file *m, void *v) goto out; } + /* moved above to avoid printing values < thresh */ +#ifdef CONFIG_FUNCTION_GRAPH_TRACER + avg = rec->time; + do_div(avg, rec->counter); + if (tracing_thresh && (avg < tracing_thresh)) + goto out; +#endif + kallsyms_lookup(rec->ip, NULL, NULL, NULL, str); seq_printf(m, " %-30.30s %10lu", str, rec->counter); #ifdef CONFIG_FUNCTION_GRAPH_TRACER seq_puts(m, " "); - avg = rec->time; - do_div(avg, rec->counter); /* Sample standard deviation (s^2) */ if (rec->counter <= 1) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in Please read the FAQ at http://www.tux.org/lkml/