From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qv1-xf2b.google.com (mail-qv1-xf2b.google.com [IPv6:2607:f8b0:4864:20::f2b]) by sourceware.org (Postfix) with ESMTPS id B8C69385840B for ; Sat, 13 Nov 2021 01:38:28 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org B8C69385840B Received: by mail-qv1-xf2b.google.com with SMTP id i13so7459882qvm.1 for ; Fri, 12 Nov 2021 17:38:28 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=b17Zb/jHCFGnJ1279p/cQWw8Q56b3pWxYFduY1R05G8=; b=f8TBYNI1TGPudMgGAD7OHd/tozgTZEOlo71UFncUBRzMNLzrstTAcUTtIUm8iKD4Dm bMLQ51NMxC28rFWdM8okIhJvmvZMN3xdTzhrzDm2HSpDVRCSL4fUWXW4AOYkpBx49tVC Djbj0AFnbp4/LZJpVklqEvCxzRDNdYRnBBiix4X1eOoTVki/wxNf+Hf2Qh/DIDpHzLfS IL8Z8JcqJNKeKaXJcKEDTS38XMby/3oIi8W2Y5rGdBO5QCivwRRqfAOkC0zxnesKXheY IWcPqPjLbgZ7Zk1nAS6mJLv6PUtRjLNvGb5B7DPkjssBNRuN8yx2ZN+dsrJTYrLyDeVp vVrQ== X-Gm-Message-State: AOAM532aXtCn4prfIwK5V4X67bnO7Zth9TOj5+ziliSLPTSdcArNNnya Q+UrzFDBsKE/CuqZTh+0mpFxDWlzklfS0zy4d2eCqtpvD9c= X-Google-Smtp-Source: ABdhPJw5XpOdpSUeA1KiqSf+JFzU7roERL3Z0nI7Qo+v+KnI/bea7VYdNE9wG8oulgrr8XTKlMXrEBPJ54C43x5VV2s= X-Received: by 2002:a05:6214:2a45:: with SMTP id jf5mr19146864qvb.15.1636767508444; Fri, 12 Nov 2021 17:38:28 -0800 (PST) MIME-Version: 1.0 References: <20211112191800.790574-1-skpgkp2@gmail.com> <20211112191800.790574-5-skpgkp2@gmail.com> In-Reply-To: From: Sunil Pandey Date: Fri, 12 Nov 2021 17:37:52 -0800 Message-ID: Subject: Re: [PATCH v2 4/6] x86-64: Add vector log/logf to libmvec microbenchmark To: Joseph Myers Cc: GNU C Library , andrey.kolesov@intel.com X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM, HK_RANDOM_ENVFROM, HK_RANDOM_FROM, HTML_MESSAGE, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=no autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 13 Nov 2021 01:38:30 -0000 On Fri, Nov 12, 2021 at 3:18 PM Joseph Myers wrote: > On Fri, 12 Nov 2021, Sunil K Pandey via Libc-alpha wrote: > > > +# Random inputs in [a=1.10,b=100.00] > > It seems odd not to have any inputs in (0, 1.10), or larger than 100 (in > the absence of actual evidence that such numbers are rare as arguments to > log in practice). All positive numbers are reasonable arguments to log. > > On some cpu there may be a slow path around 0 and 1, hence range selected from 1.10 to avoid slow path which may distort microbenchmark number on some cpu. There is no such issue for numbers larger than 100, we have to pick some number and choose 100 for microbenchmark. > -- > Joseph S. Myers > joseph@codesourcery.com >