From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail2-relais-roc.national.inria.fr (mail2-relais-roc.national.inria.fr [192.134.164.83]) by sympa.inria.fr (Postfix) with ESMTPS id 8C8097EE4B for ; Mon, 30 Sep 2013 11:00:05 +0200 (CEST) Received-SPF: None (mail2-smtp-roc.national.inria.fr: no sender authenticity information available from domain of fabrissimo@gmail.com) identity=pra; client-ip=209.85.220.182; receiver=mail2-smtp-roc.national.inria.fr; envelope-from="fabrissimo@gmail.com"; x-sender="fabrissimo@gmail.com"; x-conformance=sidf_compatible Received-SPF: Pass (mail2-smtp-roc.national.inria.fr: domain of fabrissimo@gmail.com designates 209.85.220.182 as permitted sender) identity=mailfrom; client-ip=209.85.220.182; receiver=mail2-smtp-roc.national.inria.fr; envelope-from="fabrissimo@gmail.com"; x-sender="fabrissimo@gmail.com"; x-conformance=sidf_compatible; x-record-type="v=spf1" Received-SPF: None (mail2-smtp-roc.national.inria.fr: no sender authenticity information available from domain of postmaster@mail-vc0-f182.google.com) identity=helo; client-ip=209.85.220.182; receiver=mail2-smtp-roc.national.inria.fr; envelope-from="fabrissimo@gmail.com"; x-sender="postmaster@mail-vc0-f182.google.com"; x-conformance=sidf_compatible X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqUBAKk8SVLRVdy2m2dsb2JhbABagz9SwhkIFg4BAQEBAQYLCwkUKIIlAQEFQAE4AQMMAQUFCw0uIhIBBQEcBhMIh2wDD55Nj1yEFicNiWQBBQyTbgOXf4EvjmAYKYFigS2BQDo X-IPAS-Result: AqUBAKk8SVLRVdy2m2dsb2JhbABagz9SwhkIFg4BAQEBAQYLCwkUKIIlAQEFQAE4AQMMAQUFCw0uIhIBBQEcBhMIh2wDD55Nj1yEFicNiWQBBQyTbgOXf4EvjmAYKYFigS2BQDo X-IronPort-AV: E=Sophos;i="4.90,1007,1371074400"; d="scan'208";a="34866696" Received: from mail-vc0-f182.google.com ([209.85.220.182]) by mail2-smtp-roc.national.inria.fr with ESMTP/TLS/RC4-SHA; 30 Sep 2013 11:00:03 +0200 Received: by mail-vc0-f182.google.com with SMTP id hf12so3682826vcb.27 for ; Mon, 30 Sep 2013 02:00:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=Sd7oqNkxenizwB9X4fjCY/kgjZ3Ad4aaFnzcyT05OL0=; b=Aylob5oB52+Eh3D3MNjFFZPhOb46bcFppWpCeUX/YD10O/H+CdodvCN+mpv7L2Zm7c pgt2b1xM9UUn4cwWxFb0s/JZX+kjm1Rn0qTqnp+oOLdVtikkluMSlm43hrNyGWaTS6Ek 8p7CeacBFlZuJMx9RMYC0H8mt07Thm2DEz9XLvQMhm1fH+nCxN8qipbKDMLhWYHHQOBh oOTmKJhiii5SAhnZksQBHGgHxVWLf/YxYXYPKFT3EAaQ6yFggt4wtBZCr/Qcr0mvuohq CcQzdf1qAjJUiTbhe1aXTrX27SW8W5MYImTlEdYyslFbSbIgG2oKjNOTLkJDY2bfI/JU dfqA== MIME-Version: 1.0 X-Received: by 10.52.65.136 with SMTP id x8mr4920472vds.23.1380531603687; Mon, 30 Sep 2013 02:00:03 -0700 (PDT) Sender: fabrissimo@gmail.com Received: by 10.220.171.10 with HTTP; Mon, 30 Sep 2013 02:00:03 -0700 (PDT) In-Reply-To: <5249310F.7090108@riken.jp> References: <5229DEF9.7040706@inria.fr> <5229F284.5050806@inria.fr> <5249310F.7090108@riken.jp> Date: Mon, 30 Sep 2013 11:00:03 +0200 X-Google-Sender-Auth: vOnbzpuaMx28k3lrhLfZ78yezf4 Message-ID: From: Fabrice Le Fessant To: Francois Berenger Cc: Ocaml Mailing List Content-Type: text/plain; charset=ISO-8859-1 Subject: Re: [Caml-list] from oasis to obuild (original subject was Re: Accelerating compilation) On Mon, Sep 30, 2013 at 10:07 AM, Francois Berenger wrote: > # time ./build.sh > real 0m9.397s > > Compile time after, with obuild: > # obuild clean && time (obuild configure && obuild build -j 1) > real 0m3.624s If you compile with "-j 1", where does the speed-up come from ? Is Oasis using bytecode commands instead of native-code commands ? Could you ask the two tools to display the commands they are calling, to understand the difference ? --Fabrice -- Fabrice LE FESSANT Chercheur en Informatique INRIA Paris Rocquencourt -- OCamlPro Programming Languages and Distributed Systems