[lkml]   [2003]   [Feb]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [discuss] Re: [Bug 350] New: i386 context switch very slow compared to 2.4 due to wrmsr (performance)
> I have a need to run v86 code from ring 0, so I'm not keen to slip other

[for the unsuspecting readers - Peter is talking about non Linux here]

> people's code in there. This would mean I'd need to write a v86 emulator from
> scratch which I think is more time than writing the warping code that I've
> suggested.

Have you taken a look at valgrind? (

It is a free software x86 JIT. I don't think it supports 16bit code currently,
but it probably wouldn't be too difficult to add. It wasn't primarily designed
for speed - its main application is to instrument programs - but its slowdown
compared to running on the real CPU is moderate and its certainly fast enough
for anything designed to run on DoS.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:33    [W:0.064 / U:5.436 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site