Revision ca71ba4d0cfcf5f7a8e9b24339547b5a72299f80 authored by John Baldwin on 26 January 2010, 20:58:09 UTC, committed by John Baldwin on 26 January 2010, 20:58:09 UTC
Optimize the cache flushing done when changing caching attributes of pages by doing nothing for CPUs that support self-snooping and using CLFLUSH instead of a full cache invalidate when possible. - On i386 take care of possible mappings of the page by sf buffer by utilizing the mapping for clflush, otherwise map the page transiently. Amd64 uses the direct map. - Do not use CLFLUSH on Intel CPUs due to problems with flushing the local APIC range by default. This can be further controlled via the hw.clflush_disable loader tunable. A setting of 1 disables the use of CLFLUSH. A setting of 0 allows CLFLUSH to be used for Intel CPUs when CPUID_SS is not present. Approved by: re (kib)
1 parent a6a19cb
| File | Mode | Size |
|---|---|---|
| bin | ||
| cddl | ||
| contrib | ||
| crypto | ||
| etc | ||
| games | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| lib | ||
| libexec | ||
| release | ||
| rescue | ||
| sbin | ||
| secure | ||
| share | ||
| sys | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| ALU-USA-statement.pdf | -rw-r--r-- | 38.0 KB |
| COPYRIGHT | -rw-r--r-- | 6.0 KB |
| Caldera-license.pdf | -rw-r--r-- | 12.0 KB |
| LICENSE | -rw-r--r-- | 14.8 KB |
| LOCKS | -rw-r--r-- | 354 bytes |
| MAINTAINERS | -rw-r--r-- | 6.7 KB |
| Makefile | -rw-r--r-- | 11.7 KB |
| Makefile.inc1 | -rw-r--r-- | 38.2 KB |
| ObsoleteFiles.inc | -rw-r--r-- | 190.4 KB |
| README | -rw-r--r-- | 3.0 KB |
| README.md | -rw-r--r-- | 16.2 KB |
| UPDATING | -rw-r--r-- | 43.4 KB |
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