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Richard Kistruck f8862ffdd5 Amc large segment padding (lsp), for job001811: ... See design/poolamc for thorough documentation. AMCBufferFill, for large requests (> 8 ArenaAligns) now gives precisely the requested size to the buffer, and immediately pads the rest [poolamc.c]. See #define AMCLargeSegPAGES 8 [config.h]. New PoolTraceEndMethod -- do end-of-trace work: Tracer calls PoolTraceEnd() after reclaim, when the trace is TraceFINISHED [trace.c]. AbstractPoolClass uses PoolTrivTraceEnd -- a NOOP [mpm.h, mpmst.h, mpmtypes.h, pool.c, poolabs.c, pooln.c]. AMC overrides with AMCTraceEnd, to emit diagnostic about how well the trace went [poolamc.c]. DIAGNOSTICS: AMCTraceEnd_pageret: reports page retention (currently gated to only emit if >= 100 pages are retained). traceSetSignalEmergency: warn when a trace enters emergency mode. DIAG buffer now 200K, and copes with overflow. TESTS: zcoll.c: Test allocation of mixed big and small objects. Test allocation of big object immediately followed by a retained small object, to test AMC LSP. Copied from Perforce Change: 169898 ServerID: perforce.ravenbrook.com		2010-03-02 16:41:16 +00:00
mps	Amc large segment padding (lsp), for job001811:	2010-03-02 16:41:16 +00:00