From patchwork Tue Jun 19 10:49:15 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 10474023 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id F073160230 for ; Tue, 19 Jun 2018 10:49:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DA9E2286D7 for ; Tue, 19 Jun 2018 10:49:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CE0E0286C1; Tue, 19 Jun 2018 10:49:31 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6B572286C1 for ; Tue, 19 Jun 2018 10:49:31 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DCB7F6E4DF; Tue, 19 Jun 2018 10:49:30 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192]) by gabe.freedesktop.org (Postfix) with ESMTPS id DBD146E227; Tue, 19 Jun 2018 10:49:28 +0000 (UTC) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Received: from haswell.alporthouse.com (unverified [78.156.65.138]) by fireflyinternet.com (Firefly Internet (M1)) with ESMTP id 12091675-1500050 for multiple; Tue, 19 Jun 2018 11:49:21 +0100 Received: by haswell.alporthouse.com (sSMTP sendmail emulation); Tue, 19 Jun 2018 11:49:20 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Tue, 19 Jun 2018 11:49:15 +0100 Message-Id: <20180619104920.17528-1-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.18.0.rc2 X-Originating-IP: 78.156.65.138 X-Country: code=GB country="United Kingdom" ip=78.156.65.138 Subject: [Intel-gfx] [PATCH i-g-t 1/6] lib: Conservatively include residue buffers in the available ram estimate X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: igt-dev@lists.freedesktop.org MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Add any buffers reported by sysinfo to the estimate of available memory. We do ask the kernel to purge it's caches before reporting sysinfo, but a few remain that may be forced out by our test usage, so include them. However, be conservative and only allow them to be swapped out. References: https://bugs.freedesktop.org/show_bug.cgi?id=105967 Signed-off-by: Chris Wilson --- lib/intel_os.c | 1 + 1 file changed, 1 insertion(+) diff --git a/lib/intel_os.c b/lib/intel_os.c index 88a61f378..885ffdcec 100644 --- a/lib/intel_os.c +++ b/lib/intel_os.c @@ -105,6 +105,7 @@ intel_get_avail_ram_mb(void) igt_assert(sysinfo(&sysinf) == 0); retval = sysinf.freeram; + retval += min(sysinf.freeswap, sysinf.bufferram); retval *= sysinf.mem_unit; #elif defined(_SC_PAGESIZE) && defined(_SC_AVPHYS_PAGES) /* Solaris */ long pagesize, npages;