Hi, On 03/02/2016 09:03 PM, Bjorn Madsen wrote: > I added a high speed SSD and pointed the .stxxl towards that to deal > with the swap slowdown. That bought me a drop in processing time from 12 > hrs -> 3-4 hrs. > > osrm@mat4:~/osrm-backend$ cat .stxxl > *disk=/mnt/tmp/stxxl,400000,syscall*
Since we're discussing this, I always wondered why I got STXXL messages even when running on a 256 GB RAM machine (could it not simply do everything in RAM there). Then tried to have the STXXL file on a ramdisk but failed because the Linux "tmpfs" doesn't support some IOCTL operation or so that STXXL wants to use. I ended up creating a sparse 200 GB file on the ram disk and loopback-mounting that to put an ext4 file system on it, just to enable STXXL to put its swap file there. Surely better approaches exist? Bye Frederik -- Frederik Ramm ## eMail frede...@remote.org ## N49°00'09" E008°23'33" _______________________________________________ OSRM-talk mailing list OSRM-talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/osrm-talk
