From owner-freebsd-virtualization@FreeBSD.ORG Fri Nov 14 19:06:23 2014 Return-Path: Delivered-To: freebsd-virtualization@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id D25F1D03 for ; Fri, 14 Nov 2014 19:06:23 +0000 (UTC) Received: from mail-oi0-x234.google.com (mail-oi0-x234.google.com [IPv6:2607:f8b0:4003:c06::234]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 926C01E0 for ; Fri, 14 Nov 2014 19:06:23 +0000 (UTC) Received: by mail-oi0-f52.google.com with SMTP id u20so12214575oif.25 for ; Fri, 14 Nov 2014 11:06:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=K2t9cgOF+oD/fv67o2d/rth2H010mWSxF/op5wvf66I=; b=Ew+xFQ7V/hzoCQlbA/f3MGjlEi4ZKEoyxdR3CO4xaxriOlDWO8ef7A16M6MkgsokX/ 57HxBowzSbjsYFqb3C7Oq6Dydhbc8aktxD6WRpzj07OG/t6nDY1hWUvtDV+Ud/OjS8wW sSLH9misLLNnD//kBRLgXJWc5PEF/Kx0Dq33bgVIUoOuHvd+bD5J2mj/RefbD1PBTBHP IKvy0IFK17HhoFtmcH/qP5n+9y/ybcCYV5B09opriZUDnQbt13wkdQKkiM+cwDeuHFha vTg9D4InGUBtSpNcju3eLV3EJVdRJFRXJ9kGFc4PFTwdm6Ln8Lpi2bMV5W5n8zevraOZ Y+dw== MIME-Version: 1.0 X-Received: by 10.202.76.210 with SMTP id z201mr121708oia.123.1415991982763; Fri, 14 Nov 2014 11:06:22 -0800 (PST) Received: by 10.182.74.5 with HTTP; Fri, 14 Nov 2014 11:06:22 -0800 (PST) Received: by 10.182.74.5 with HTTP; Fri, 14 Nov 2014 11:06:22 -0800 (PST) In-Reply-To: References: Date: Fri, 14 Nov 2014 23:06:22 +0400 Message-ID: Subject: Re: VirtualBox performance From: Mikhail Tsatsenko To: Peter Ross Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.18-1 Cc: freebsd-virtualization@freebsd.org X-BeenThere: freebsd-virtualization@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "Discussion of various virtualization techniques FreeBSD supports." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Nov 2014 19:06:24 -0000 14.11.2014 4:33 =D0=BF=D0=BE=D0=BB=D1=8C=D0=B7=D0=BE=D0=B2=D0=B0=D1=82=D0= =B5=D0=BB=D1=8C "Peter Ross" =D0=BD=D0=B0=D0=BF=D0=B8=D1=81=D0=B0=D0=BB: > > Hi all, > > I am running VirtualBox on a new server (a Dell T620). > > Inside is Oracle Linux. I run a Java app and it is very slow to start. Hi, In order to utilize multiple CPUs inside virtual machine you have to enable io-apic setting. > Memory should not be an issue. I have 32 GB and 8 GB for the VM. > > The server has 2 Xeon CPUs with 4 core each (hypertthreated so VBox sees 16 CPUs). > > I do not see any difference between using 1 CPU or 16 for the VM.. > > Interestingly all the host CPUs are 60-70% in system calls when I run it on 16 CPUs, according to top. > > I am tempted to experiment with CPU sets, btw. > > I wonder whether VirtualBox and multiple CPUs are a good mix at all.. > > Do you have any recommendations how to speed up my VM and Java? > > Thank you > Peter > _______________________________________________ > freebsd-virtualization@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization > To unsubscribe, send any mail to " freebsd-virtualization-unsubscribe@freebsd.org"