On Fri, Aug 10, 2012 at 7:51 PM, William Stein <wst...@gmail.com> wrote: > Hi, > > I'm sad that on a fast SSD repeatedly doing the following: > > wstein@geom:/usr/local/sage/sage-5.2$ time echo "" | ./sage > ---------------------------------------------------------------------- > | Sage Version 5.2, Release Date: 2012-07-25 | > | Type "notebook()" for the browser-based notebook interface. | > | Type "help()" for help. | > ---------------------------------------------------------------------- > sage: sage: > Exiting Sage (CPU time 0m0.03s, Wall time 0m0.03s). > > real 0m1.902s > user 0m1.428s > sys 0m0.424s > > always outputs 1.9 seconds! That test was < 1 second on sage.math > when I put in a doctest to make sure it didn't exceed that 1 second, > when we were trying to improve the sage startup time. In the > intervening year (?), the test is ignored or gone, and the startup > time seems to have got a bit worse. Dang. > > On another faster machine, I'm getting: > > wstein@combinat:/usr/local/sage/sage-5.2$ time echo "" | ./sage > ---------------------------------------------------------------------- > | Sage Version 5.2, Release Date: 2012-07-25 | > | Type "notebook()" for the browser-based notebook interface. | > | Type "help()" for help. | > ---------------------------------------------------------------------- > sage: sage: > Exiting Sage (CPU time 0m0.04s, Wall time 0m0.05s). > > real 0m1.580s > user 0m1.224s > sys 0m0.356s > > > Any ideas? > > > > > William >
Another data point: I also get (just barely) under 1s on a ~1 year old server running debian 6.0.5. <pre> jonesbe@sage:~/sage/sage-5.2$ time echo "" | ./sage ---------------------------------------------------------------------- | Sage Version 5.2, Release Date: 2012-07-25 | | Type "notebook()" for the browser-based notebook interface. | | Type "help()" for help. | ---------------------------------------------------------------------- Loading Sage library. Current Mercurial branch is: 11143 sage: sage: Exiting Sage (CPU time 0m0.02s, Wall time 0m0.02s). real 0m0.977s user 0m0.676s sys 0m0.300s </pre> This is a VM running on Intel(R) Xeon(R) CPU X5690 @ 3.47GHz and RAID-5 server grade hard drives. Mount options: <pre> /dev/xvda4 on /home type ext3 (rw,nosuid,nodev,relatime,errors=continue,data=ordered) </pre> -- Benjamin Jones -- -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
