Using qemu from cvs simulating x86-softmmu (no kqemu) on x86, booting SuSE 9.1 and getting to the xdm (kdm?) graphical login screen, requires making about 1088000 translations, and the translation cache is flushed 17 times. Booting is not too bad, but once user-mode starts to run the translation cache is pretty much hammered.
I made 2 changes: * increase CODE_GEN_BUFFER_SIZE from 16*1024*1024 to 64*1024*1024, * observe that CODE_GEN_AVG_BLOCK_SIZE of 128 for the softmmu case is too low; my measurements put it at about 247. So I changed it to 256. With those changes in place, the same boot-to-kdm process requires only about 570000 translations to be made, and 2 cache flushes to happen. Of course the cost is an extra 48M of memory use. J _______________________________________________ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
