Commit graph

3 commits

Author SHA1 Message Date
janwas
5d80d2ee5d fixes+improvements from work:
- add AlignedAllocator - an STL allocator that returns
cache-line-aligned objects (required to avoid RFOs when threads write to
various independent items in a container)
- bits: bit_mask can now be used for N=0..numBits (works around
full-word-shifts-are-undefined issue)
- precompiled.h: remove scoped_ptr, add function-related stuff from TR1
- numa:
  . add numa_IsMemoryInterleaved
  . numa_Allocate is now able to allocate large pages as well (reduces
TLB misses)
- os_cpu: interface change to support 32-bit apps running on WoW64
systems with > 4 GB of memory
- topology: use new x86_x64_EnumerateCaches API; fix detection of cache
ID
- x86_x64: provide the means of enumerating all caches returned by CPUID
and detect L1 cache size

This was SVN commit r6004.
2008-06-01 08:25:12 +00:00
janwas
04127c7af3 fixes/improvements to lib code from work
- topology.cpp: modify interface due to thread-safety issue. caller is
now responsible for ensuring the first _Detect call isn't reentered;
everything else is safe.
- fix thread-safety issue in wnuma; use winit mechanism to ensure it's
ready before use
- VFS now takes a cacheSize parameter (required for being able to
disable read-only file caches for the image loader at work)
- allow dynarray that isn't actually holding memory
- debug_stl: VC9 fix (disable this code except on the exact STL version
on which it was tested)
- zlib, lib_api: changes to macro used to toggle between static and
dynamic linking
- add boost filesystem header in external_libraries
- amd64: cpu_ topology functions are now provided by x86_x64
- cpu: remove cpu_ClockFrequency (dangerous, may be tempting to use
during WHRT init which would cause a crash). use x86_x64_ClockFrequency
or os_cpu_ClockFrequency instead.
- werrno: cope with newer boost versions
- wmman: follow SUSv3 in rejecting zero-length mappings

This was SVN commit r5954.
2008-05-13 19:43:02 +00:00
janwas
ffdff6888d add NUMA and shared-L2-cache detect code (required at work)
enable most of IA-32 specific code to be used in amd64 (resides in
directory lib/sysdep/x86_x64)

bits: add IsBitSet
remove mem_PageSize (use os_cpu_PageSize instead)
cpuid: change interface to allow gracefully supporting later
subfunctions that require input parameters
amd64_asm.asm: add amd64 implementation of cpuid
cpu: move functions provided by OS to sysdep/os_cpu.cpp
cpu topology: avoid trouble when process affinity is set by remapping
processor numbers to 0..PopulationCount(processAffinity)
topology.cpp: move ex-ia32 topology code here.

This was SVN commit r5945.
2008-05-12 18:15:08 +00:00