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From: "Richard W.M. Jones" <rjones@redhat.com>
To: Laszlo Ersek <lersek@redhat.com>
Cc: edk2-devel-01 <edk2-devel@lists.01.org>,
	"Gabriel L. Somlo" <gsomlo@gmail.com>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Jordan Justen <jordan.l.justen@intel.com>,
	Xiang Zheng <xiang.zheng@linaro.org>
Subject: Re: [PATCH 0/5] ArmVirtPkg, OvmfPkg: improve firmware duration of direct kernel boot
Date: Fri, 16 Mar 2018 09:59:50 +0000	[thread overview]
Message-ID: <20180316095950.GZ2787@redhat.com> (raw)
In-Reply-To: <20180315190258.6580-1-lersek@redhat.com>

On Thu, Mar 15, 2018 at 08:02:53PM +0100, Laszlo Ersek wrote:
> Please attach a good number of disks at once on the command line,

I read this bit then forgot to do it :-/

The test suite has a test for adding a large number of drives:

  https://github.com/libguestfs/libguestfs/tree/master/tests/disks

so it's quite easy for me to test this:

  $ time ./test-add-disks -n 100

Results with Fedora's edk2-aarch64:

  real	8m25.353s
  user	0m2.393s
  sys	0m2.657s

Results with your file:

  real	8m15.285s
  user	0m0.178s
  sys	0m0.381s

So there's not really a great difference here, but boot time is not a
significant factor for this test unlike the boot benchmark tests.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-builder quickly builds VMs from scratch
http://libguestfs.org/virt-builder.1.html


  parent reply	other threads:[~2018-03-16  9:53 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-15 19:02 [PATCH 0/5] ArmVirtPkg, OvmfPkg: improve firmware duration of direct kernel boot Laszlo Ersek
2018-03-15 19:02 ` [PATCH 1/5] ArmVirtPkg/PlatformBootManagerLib: return to "-kernel before boot devices" Laszlo Ersek
2018-03-16  9:58   ` Ard Biesheuvel
2018-03-16 13:40     ` Laszlo Ersek
2018-03-16 13:45       ` Ard Biesheuvel
2018-03-16 14:06         ` Laszlo Ersek
2018-03-15 19:02 ` [PATCH 2/5] OvmfPkg/PlatformBootManagerLib: wrap overlong lines in "BdsPlatform.c" Laszlo Ersek
2018-03-15 19:02 ` [PATCH 3/5] OvmfPkg/PlatformBootManagerLib: rejuvenate old-style function comments Laszlo Ersek
2018-03-15 19:02 ` [PATCH 4/5] OvmfPkg/PlatformBootManagerLib: hoist PciAcpiInitialization() Laszlo Ersek
2018-03-16 15:27   ` Gabriel L. Somlo
2018-03-15 19:02 ` [PATCH 5/5] OvmfPkg/PlatformBootManagerLib: process "-kernel" before boot devices Laszlo Ersek
2018-03-16  8:57 ` [PATCH 0/5] ArmVirtPkg, OvmfPkg: improve firmware duration of direct kernel boot Richard W.M. Jones
2018-03-16  9:59 ` Richard W.M. Jones [this message]
2018-03-16 14:02   ` Laszlo Ersek
2018-03-16 14:47     ` Richard W.M. Jones
2018-03-16 17:46       ` Laszlo Ersek
2018-03-16 14:08 ` Ard Biesheuvel
2018-03-16 15:29 ` Gabriel L. Somlo
2018-03-16 17:49   ` Laszlo Ersek
2018-03-16 19:02 ` Laszlo Ersek

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