a57ec59f9c
It was found during building llvm that the page pv lock pool was seeing very high contention. Since the pmap is already NUMA aware, it was surmised that the domains were referencing similar pages in the different domains. This reduces contention to the point of noise in a lockstat(8) run (~51% down to under 5%), reducing build times by up to 20%. This doesn't do a perfect domain alignment, just a best-guess based on hardware available, that the domain is roughly specified in the upper bits of the PA. Trying to be more clever would more than likely result in reduced performance just on the work needed. MFC after: 2 weeks |
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| .. | ||
| aim_machdep.c | ||
| locore32.S | ||
| locore64.S | ||
| locore.S | ||
| mmu_oea64.c | ||
| mmu_oea64.h | ||
| mmu_oea.c | ||
| moea64_if.m | ||
| moea64_native.c | ||
| mp_cpudep.c | ||
| slb.c | ||
| trap_subr32.S | ||
| trap_subr64.S | ||