diff options
Diffstat (limited to 'emulators/virtualbox-ose-kmod/files/patch-src-VBox-Runtime-r0drv-freebsd-sleepqueue-r0drv-freebsd.h')
| -rw-r--r-- | emulators/virtualbox-ose-kmod/files/patch-src-VBox-Runtime-r0drv-freebsd-sleepqueue-r0drv-freebsd.h | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/emulators/virtualbox-ose-kmod/files/patch-src-VBox-Runtime-r0drv-freebsd-sleepqueue-r0drv-freebsd.h b/emulators/virtualbox-ose-kmod/files/patch-src-VBox-Runtime-r0drv-freebsd-sleepqueue-r0drv-freebsd.h deleted file mode 100644 index e1ae4d7ea855..000000000000 --- a/emulators/virtualbox-ose-kmod/files/patch-src-VBox-Runtime-r0drv-freebsd-sleepqueue-r0drv-freebsd.h +++ /dev/null @@ -1,20 +0,0 @@ -Without this patch any waits for periods shorter than a single tick return -immediately leading to a lot of unnecessary spinning. For example, I observe that -my guest's idle loop does a lot of sleeps with periods slightly shorter than 1 ms -(1/hz), e.g. 900us. All that waiting turns into pure spinning and VirtualBox eats -100% of a core. -The patch improves the situation significantly. Also, it (approximately) follows -what tvtohz does. - -Submitted by: Andriy Gapon <avg@FreeBSD.org> ---- src/VBox/Runtime/r0drv/freebsd/sleepqueue-r0drv-freebsd.h.orig 2012-12-19 19:27:29.000000000 +0100 -+++ src/VBox/Runtime/r0drv/freebsd/sleepqueue-r0drv-freebsd.h 2012-12-20 12:07:48.941861966 +0100 -@@ -82,6 +82,8 @@ - uint64_t cTicks = ASMMultU64ByU32DivByU32(uTimeout, hz, UINT32_C(1000000000)); - if (cTicks >= INT_MAX) - return RTSEMWAIT_FLAGS_INDEFINITE; -+ else if (cTicks == 0 && uTimeout > 0) -+ pWait->iTimeout = 1; - else - pWait->iTimeout = (int)cTicks; - #endif |