Hi, On 02/10/2010 09:11 AM, Martin Gracik wrote:
Hello, yeah, we know buildinstall isn't perfect, that's why it's being rewritten now. I hope that the new code will be working a lot better.
Martin, Do you have Lorax (John that is the buildscripts rewrite) hosted somewhere? Are we going to put this inside anaconda again, or maybe we should give Lorax its own git ? Either way if you put a tarbal somewhere, then maybe John is interested in testing it, John ? Regards, Hans
-- Martin Gracik ----- "John Reiser"<jreiser@xxxxxxxxxxxx> wrote:Did buildinstall.functions (and/or mkinitrd), which is now written in bash, used to be written in some other language, such as python? get_dso_deps contains a comment "I still hate shell." I have been building and testing a DVD from rawhide daily using pungi. Building takes about 40 to 45 minutes: 10 minutes user CPU, 14 minutes system CPU, and 16 to 20 minutes download. I'd like that to be faster, say 8 to 10 minutes plus download. After Bug 559647 (quadratic work: genisoimage per .rpm) then the next longest piece is upd-instroot. "strace -f -c" shows that there are over 125,000 successful execve(). Now install.img has around 14,600 files, so the average is more than 8 execve per file. A detailed examination using strace shows over 97,000 execve by upd-instroot: 34573 upd-instroot execve("/usr/bin/dirname", 15167 upd-instroot execve("/bin/cp", 12513 upd-instroot execve("/bin/egrep", 11478 upd-instroot execve("/usr/bin/file", 5538 upd-instroot execve("/bin/sed", 5010 upd-instroot execve("/bin/basename", 3675 upd-instroot execve("/usr/bin/readlink", 3090 upd-instroot execve("/usr/sbin/chroot", 2264 upd-instroot execve("/bin/rm", 1134 upd-instroot execve("/bin/ln", 1046 upd-instroot execve("/bin/grep", 1031 upd-instroot execve("/lib64/ld-2.11.90.so", 1030 upd-instroot execve("/bin/uname", 703 upd-instroot execve("/usr/bin/find", 627 upd-instroot execve("/bin/mkdir", [snip] and the culprits are instFile() and get_dso_deps() and callers. One process making some direct calls per file, instead of clone+execve several times per file, should be much faster. -- _______________________________________________ Anaconda-devel-list mailing list Anaconda-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/anaconda-devel-list_______________________________________________ Anaconda-devel-list mailing list Anaconda-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/anaconda-devel-list
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