From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 82857C433DF for ; Wed, 27 May 2020 05:40:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6795720787 for ; Wed, 27 May 2020 05:40:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725872AbgE0FkW (ORCPT ); Wed, 27 May 2020 01:40:22 -0400 Received: from foss.arm.com ([217.140.110.172]:60560 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725267AbgE0FkW (ORCPT ); Wed, 27 May 2020 01:40:22 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id DD69355D; Tue, 26 May 2020 22:40:21 -0700 (PDT) Received: from A010555 (unknown [10.169.38.93]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A2EA03F305; Tue, 26 May 2020 22:40:19 -0700 (PDT) References: <20200522065330.34872-1-nick.gasson@arm.com> User-agent: mu4e 1.4.5; emacs 26.3 From: Nick Gasson To: Ian Rogers Cc: Arnaldo Carvalho de Melo , Jiri Olsa , Peter Zijlstra , Stephane Eranian , LKML Subject: Re: [PATCH] perf jvmti: remove redundant jitdump line table entries In-reply-to: Date: Wed, 27 May 2020 13:40:14 +0800 Message-ID: MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/27/20 13:03 PM, Ian Rogers wrote: > > Great result, thanks! I note there is a lack of symbolization when > benchmarking a few Java applications. I'll try to see if there's a > sensible resolution for those. > I noticed it loses information when the Hotspot code cache is resized. I've been working around that by setting -XX:InitialCodeCacheSize and -XX:ReservedCodeCacheSize to large values. Does this help in your case? > > It'd be better to make this into two patches. Also on acme's perf/core > branch if possible: > https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git/log/?h=perf/core OK sure, I'll do that. -- Nick