Stas Sergeev

Replying to myself: > Yes but what does native dpmi do in > that case? It doesn't have pml, so should > it work fully on memcmp()? Starting from 747856c9...

Actually it seems that with PML and uffd, the only use for mprotect+fault approach is JIT?

> uffd, the only use for mprotect+fault > approach is JIT? Seems not, as it uses cpatch on faults. It seems, vga_emu_fault() in non-instremu mode is only used by true_vm86....

The missing part is to dispatch instremu on vga pio writes. Otherwise the various palette-based fade effects are horribly slow.

This is fixed by coalesced PIO support. Also I am now testing the dynamic JIT dispatch. I think this can be closed.

Try running `speed 0`

Try mounting with nolock option.

If you can analyze such output and try to identify the problem from it, then of course its helpful. You can also use `dosemu -perf` to generate the data for...

Your strace traces bash because you haven't specified `-f`. Also it lacks timestamps as you haven't used `--timestamps`. Perf doesn't write into a log but in a separate file. Your...

But before anything else, you could note that your log is full of xattrs errors. You need to enable xattrs first, with the "user_xattr" mount option.