Hi Steve, Thank you for your reply.
On Sun, 16 Jun 2013 02:26:01 +0100 Steve McIntyre <[email protected]> wrote: > Building a (potentially large) set of images for an individual > architecture takes ~30-40 minutes end-to-end; we currently build for > the following 15 arches: > > i386 source amd64 multi-arch powerpc armel armhf ia64 mips mipsel s390 > s390x sparc kfreebsd-amd64 kfreebsd-i386 Is it built with multiple hosts (for each arch) or single host? > That's where the time goes. The sets we're building for each arch can > include up to 9 different types of image: > > netinst > netinst with firmware > normal full CD set (Gnome desktop) > kde CD > lxde CD > xfce CD > full DVD set > full BD set > full DL-BD set > > They're currently all run in parallel as we build for one > architecture, getting a massive win from paralellism and caching on > pettersson (the CD build machine). I'm hoping we can add some SSDs > into pettersson next, to make the build process even faster. Do those 9 images run at once? Surely SSD makes it faster a bit, but I recommend to use PCIe flash. I've tested debian-cd script for amd64 arch with HDD/SSD(raid0)/ioDrive(raid0), archive data on each 1 partition and output to same partition. ------------------------------------------------------------------- # make image-trees HDD real 20m34.608s user 4m47.538s sys 7m32.480s SSD real 13m58.332s user 4m43.626s sys 7m57.726s ioDrive real 12m49.472s user 4m46.786s sys 8m50.189s ------------------------------------------------------------ # make images (normal full CD set) HDD real 68m4.551s user 30m41.327s sys 3m55.095s SSD real 50m4.132s user 30m31.302s sys 3m51.378s ioDrive real 19m2.295s user 29m59.704s sys 3m42.222s ------------------------------------------------------------ Probably we don't want to use ioDrive since it needs proprietary driver, but similar PCIe flash device (Intel 910?) would be able to gain better performance than normal SSD drives. -- Regards, Hideki Yamane henrich @ debian.or.jp/org http://wiki.debian.org/HidekiYamane -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
