Hi all, I'm trying to use XFree86 4.3.0 on an embedded system based on ARM9 core running at 200 MHz, with a graphical card connected on the PCI bus (for the first trials I'm using a Matrox Millennium II, and then I'm going to switch to a custom hardware). I'm running Linux 2.4.18. I crosscompiled the full XFree86 version, and not the "tiny" one, because I need to use the modular drivers (such as mga_drv.o) for graphical accelerations. I succeeded in running the X server on my system, but the server startup time is quite high: if launched soon after the system boot, "X -probeonly" takes about 16 seconds to terminate. I suspect that most of this time could be spent by CPU for file accesses: e.g. loading modules, or writing the logfile. The following points drive me to this suspicion: 1. I have a JFFS2 filesystem on a flash memory. This filesystem is compressed, and moreover it uses some algorithms to avoid insisting on the same flash sector and to make garbage collection: therefore, it can be heavy for the CPU if a lot of files are accessed, as in the case of XFree86. 2. If I launch "X -probeonly" several times consecutively, the execution times vary a lot, ranging from 10 to 20 seconds. I think this huge variation can be the effect of file caching and/or JFFS2 processing. I made some attempts to reduce the file access time, in this way: 1. Using a RAM filesystem (tmpfs) to store all the /usr/X11R6 stuff (modules) and changing the configuration file to load modules from there. Result: no meaningful change. 2. Changing the logfile position with the "-logfile" option. I tried using /dev/null, and using a path located in a tmpfs filesystem, but in both cases the X server aborts with signal 4. I wanted to ask you what problem can I have with "-logfile" to cause the server abort, and if you have some better ideas that could speed up the server startup. Sorry for the long post and thanks in advance. -- Pier Paolo Glave __________________________________ Do you Yahoo!? Yahoo! Finance: Get your refund fast by filing online. http://taxes.yahoo.com/filing.html _______________________________________________ XFree86 mailing list XFree86@xxxxxxxxxxx http://XFree86.Org/mailman/listinfo/xfree86
