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Thu, 25 Jun 2020 11:29:22 +0000 (UTC) Date: Thu, 25 Jun 2020 12:29:19 +0100 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: Thomas Huth Subject: Re: [PATCH RFC 0/3] gitlab: build containers to use in build jobs Message-ID: <20200625112919.GB1014704@redhat.com> References: <20200622153318.751107-1-berrange@redhat.com> <20200625112653.GA1014704@redhat.com> MIME-Version: 1.0 In-Reply-To: <20200625112653.GA1014704@redhat.com> User-Agent: Mutt/1.14.0 (2020-05-02) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Content-Disposition: inline Received-SPF: pass client-ip=207.211.31.120; envelope-from=berrange@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/25 01:47:53 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= Cc: Laszlo Ersek , Alex =?utf-8?Q?Benn=C3=A9e?= , qemu-devel@nongnu.org, Wainer dos Santos Moschetta , Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu, Jun 25, 2020 at 12:26:53PM +0100, Daniel P. Berrangé wrote: > On Thu, Jun 25, 2020 at 01:15:52PM +0200, Thomas Huth wrote: > > On 22/06/2020 17.33, Daniel P. Berrangé wrote: > > > The current gitlab CI jobs are quite inefficient because they > > > use the generic distro images and then apt-get/dnf install > > > extra packages every time. > > > > > > The other downside is that the container environment used is > > > only defined in thte .gitlab-ci.yml file, so it tedious to > > > reproduce locally. > > > > > > We already have containers defined in tests/docker for use by > > > developers building locally. We can use these for CI systems > > > too if we just had a way to build them.... > > > > > > ...GitLab CI offers such a way. We can use docker-in-docker > > > to build the images at the start of the CI cycle, and use > > > the built images in later jobs. > > > > > > These later jobs are now faster because they're not having > > > to install any software. > > > > Did you see any speed-up? I had a look at some pipelines, and it seems to me > > that they rather got slower now? For example, this is the system1 pipeline > > before your change: > > > > https://gitlab.com/huth/qemu/-/jobs/610924897 > > > > and after your change: > > > > https://gitlab.com/huth/qemu/-/jobs/611069374 > > > > Duration went up from 35 minutes to 42 minutes. > > > > Seems also to happen in your builds, before the change: > > > > https://gitlab.com/berrange/qemu/-/jobs/582995084 > > > > and after the change: > > > > https://gitlab.com/berrange/qemu/-/jobs/606175927 > > > > ... went from 36 minutes up to 42 minutes. > > > > Could be a coincidence due to the load on the shared runners, but it looks > > at least a little bit suspicious... > > I think the difference is because we're building more features now. The > dockerfiles have provided more build pre-requisites that the old gitlab > recipe did. > > If you compare the configure summary, I see the new build now covers > SDL, curses, curl, pulseaudio, virtiofs, SASL, libjpeg, xen, docs > and a few more. So we've saved time by not intsallling many packages > each time, but consumed a greater amount of time by compiling more > features. Oh a missed a lot more actually - there's also spice, opengl, libiscsi, libnfs, libusb, seccomp, libssh, lzo, snappy, bzip, zstd, numa and udev too. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|