From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 20133 invoked by alias); 18 Jun 2012 16:48:46 -0000 Received: (qmail 20118 invoked by uid 22791); 18 Jun 2012 16:48:45 -0000 X-SWARE-Spam-Status: No, hits=-2.0 required=5.0 tests=AWL,BAYES_00,RCVD_IN_HOSTKARMA_NO X-Spam-Check-By: sourceware.org Received: from rock.gnat.com (HELO rock.gnat.com) (205.232.38.15) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 18 Jun 2012 16:48:27 +0000 Received: from localhost (localhost.localdomain [127.0.0.1]) by filtered-rock.gnat.com (Postfix) with ESMTP id 7EE6A1C6F54; Mon, 18 Jun 2012 12:48:26 -0400 (EDT) Received: from rock.gnat.com ([127.0.0.1]) by localhost (rock.gnat.com [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 7fZVW0FPSh+4; Mon, 18 Jun 2012 12:48:26 -0400 (EDT) Received: from joel.gnat.com (localhost.localdomain [127.0.0.1]) by rock.gnat.com (Postfix) with ESMTP id 42CE01C6F4C; Mon, 18 Jun 2012 12:48:26 -0400 (EDT) Received: by joel.gnat.com (Postfix, from userid 1000) id E9AB5145616; Mon, 18 Jun 2012 09:48:23 -0700 (PDT) Date: Mon, 18 Jun 2012 16:48:00 -0000 From: Joel Brobecker To: Doug Evans Cc: gdb-patches@sourceware.org Subject: Re: [RFA] Add more parallelization to gdb.base testing Message-ID: <20120618164823.GC19107@adacore.com> References: <20120618163310.98BF71E136F@ruffy2.mtv.corp.google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20120618163310.98BF71E136F@ruffy2.mtv.corp.google.com> User-Agent: Mutt/1.5.20 (2009-06-14) Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org X-SW-Source: 2012-06/txt/msg00591.txt.bz2 > This patch speeds up gdb testing at -j6 on my machine from 7mins to 4mins. > I didn't want to get too carried away here, this felt like a good compromise. Love the idea of adding more parallelization. FWIW, I run the AdaCore testsuite at -j24 on my 3.5 year old quad-core. I start getting diminishing benefits after -j20, but even at -j24, the machine is still completely responsive. When doing testing with gdbserver or Qemu, I usually use -j16 to -j20 to avoid some spurious timeouts. So I think there is still room for more parallelization if we want to. -- Joel