diff options
| author | Michael Shalayeff <mickey@cvs.openbsd.org> | 2005-04-21 04:39:36 +0000 |
|---|---|---|
| committer | Michael Shalayeff <mickey@cvs.openbsd.org> | 2005-04-21 04:39:36 +0000 |
| commit | 69e87fee98396ec10e442c4defdf192d9e53f997 (patch) | |
| tree | c48c59ddc701b5f8aee3c870708fb4c8b5fd7659 /sys/arch/amd64 | |
| parent | 15c9f1f18f2762ddbd2ccdb7ffe0f7d14309de8e (diff) | |
count fpu lazy context switches; deraadt@ ok
Diffstat (limited to 'sys/arch/amd64')
| -rw-r--r-- | sys/arch/amd64/amd64/fpu.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/sys/arch/amd64/amd64/fpu.c b/sys/arch/amd64/amd64/fpu.c index 820fb7a8305..93962c0cd17 100644 --- a/sys/arch/amd64/amd64/fpu.c +++ b/sys/arch/amd64/amd64/fpu.c @@ -1,4 +1,4 @@ -/* $OpenBSD: fpu.c,v 1.7 2004/10/28 20:36:15 kettenis Exp $ */ +/* $OpenBSD: fpu.c,v 1.8 2005/04/21 04:39:34 mickey Exp $ */ /* $NetBSD: fpu.c,v 1.1 2003/04/26 18:39:28 fvdl Exp $ */ /*- @@ -207,9 +207,10 @@ fpudna(struct cpu_info *ci) * Initialize the FPU state to clear any exceptions. If someone else * was using the FPU, save their state. */ - if (ci->ci_fpcurproc != NULL && ci->ci_fpcurproc != p) + if (ci->ci_fpcurproc != NULL && ci->ci_fpcurproc != p) { fpusave_cpu(ci, 1); - else { + uvmexp.fpswtch++; + } else { clts(); fninit(); fwait(); |