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=-11.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 D600FC433DF for ; Sun, 2 Aug 2020 17:19:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A7FDD206E7 for ; Sun, 2 Aug 2020 17:19:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="cqauke+C" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726789AbgHBRTp (ORCPT ); Sun, 2 Aug 2020 13:19:45 -0400 Received: from us-smtp-2.mimecast.com ([207.211.31.81]:42314 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725793AbgHBRTo (ORCPT ); Sun, 2 Aug 2020 13:19:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1596388783; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=rQMSjrPRC4wFlmbSDPDwXTgwvvtavqffSQ+AKyhY+pE=; b=cqauke+Chsd02m5kOVyWOWmfvIEEADwkWhcm1DFWYZzaRXUGsVyzRNbWHoqk5Ty3YvzyhT X2ier/xprUA1MQ0pEPiHkzjRwE4/qfXP4nPf3vc9BtDEFnwQ3ht/vwM35i+uU9rj1LYd65 ez48h7YFHwQ8PYmRfls9/ZQsJAgniXg= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-483-ei1DFMbVNUitLzHTS7O-6g-1; Sun, 02 Aug 2020 13:19:41 -0400 X-MC-Unique: ei1DFMbVNUitLzHTS7O-6g-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 24D2F8005B0; Sun, 2 Aug 2020 17:19:40 +0000 (UTC) Received: from localhost (dhcp-12-102.nay.redhat.com [10.66.12.102]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9314C5D9CD; Sun, 2 Aug 2020 17:19:39 +0000 (UTC) Date: Mon, 3 Aug 2020 01:32:10 +0800 From: Zorro Lang To: Jeff Moyer Cc: fstests@vger.kernel.org, io-uring@vger.kernel.org Subject: Re: [PATCH 2/4] fsstress: reduce the number of events when io_setup Message-ID: <20200802173210.GN2937@dhcp-12-102.nay.redhat.com> Mail-Followup-To: Jeff Moyer , fstests@vger.kernel.org, io-uring@vger.kernel.org References: <20200728182320.8762-1-zlang@redhat.com> <20200728182320.8762-3-zlang@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Sender: io-uring-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On Wed, Jul 29, 2020 at 03:43:39PM -0400, Jeff Moyer wrote: > Zorro Lang writes: > > > The original number(128) of aio events for io_setup is a little big. > > When try to run lots of fsstress processes(e.g. -p 1000) always hit > > io_setup EAGAIN error, due to the nr_events exceeds the limit of > > available events. So reduce it from 128 to 64, to make more fsstress > > processes can do AIO test. > > It looks to me as though there's only ever one request in flight. I'd > just set it to 1. > > Also, you've included another change not mentioned in your changelog. > Please make sure the changelog matches what's done in the patch. Thanks Jeff, I'll rewrite this patch:) Do you have any review points about those two IO_URING related patches (1/4 and 4/4), or it looks good to you? Thanks, Zorro > > -Jeff > > > > > Signed-off-by: Zorro Lang > > --- > > ltp/fsstress.c | 7 ++++--- > > 1 file changed, 4 insertions(+), 3 deletions(-) > > > > diff --git a/ltp/fsstress.c b/ltp/fsstress.c > > index 388ace50..a11206d4 100644 > > --- a/ltp/fsstress.c > > +++ b/ltp/fsstress.c > > @@ -28,6 +28,7 @@ > > #endif > > #ifdef AIO > > #include > > +#define AIO_ENTRIES 64 > > io_context_t io_ctx; > > #endif > > #ifdef URING > > @@ -699,8 +700,8 @@ int main(int argc, char **argv) > > } > > procid = i; > > #ifdef AIO > > - if (io_setup(128, &io_ctx) != 0) { > > - fprintf(stderr, "io_setup failed"); > > + if (io_setup(AIO_ENTRIES, &io_ctx) != 0) { > > + fprintf(stderr, "io_setup failed\n"); > > exit(1); > > } > > #endif > > @@ -714,7 +715,7 @@ int main(int argc, char **argv) > > doproc(); > > #ifdef AIO > > if(io_destroy(io_ctx) != 0) { > > - fprintf(stderr, "io_destroy failed"); > > + fprintf(stderr, "io_destroy failed\n"); > > return 1; > > } > > #endif >