arenavm.c, trace.c, mpmst.h -- trace->preTraceArenaReserved, to show pre- and peak-vmem during collection
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Change: 170098
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arenavm.c -- move chunk-return into new function "VMCompact".
(also, in VMArenaFinish, null out arena->primary in VMArenaFinish, so it is not left dangling).
arena.c, arenavm.c, mpm.h, mpmst.h, mpmtypes.h:
arena->class->compact: ArenaCompact, ArenaTrivCompact, VMCompact
trace.c -- traceReclaim calls ArenaCompact!
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Change: 170095
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zcoll.c:
How to get rid of all the objects, so full collect really collects all automatic objects:
- Rootdrop() helps, but we can still retain a 1.2MB object;
- stackwipe() does not help much -- these unwanted ambig refs are being left on the stack by MPS code that runs between mps_arena_collect and the flip!
- therefore StackScan(0/1) to destroy stack+reg root before full collect: it's the only way to be sure.
Reproducibility:
- give Make() a random? switch, acted on by df() = diversity function, to allow bypass of rnd();
- ZRndStateSet, to set the seed for rnd()
Output:
- print_M: switchable Mebibytes or Megabytes (more useful, to be honest);
- get(): don't report message times, it messes up diffs.
testlib.c/h:
Reproducibility:
- fix rnd_state so a rnd_state getter is possible;
- testlib.h += rnd_state_t, rnd_state(), rnd_state_set(), rnd_state_set_v2()
trace.c: traceFindGrey diag: no newline please
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Change: 170093
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Tracer calls PoolTraceEnd() when the trace is TraceFINISHED.
AbstractPoolClass uses PoolTrivTraceEnd -- a NOOP. [mpm.h, mpmst.h, mpmtypes.h, pool.c, poolabs.c]
AMC overrides with AMCTraceEnd, to emit diagnostic on how well the trace went! [poolamc.c]
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Change: 168478
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More diag:
- new traceSetSignalEmergency;
- new AMCFix_amcSegCreateNailboard and AMCHeaderFix_amcSegCreateNailboard
(note: the other, unreported, route to becoming boarded is because of a (mutator) buffer);
- in traces: show SegBase and zone;
- in TraceStart: show genZoneSets;
- in amcReclaimNailed: show cbpip and cbpad.
zcoll.c:
- sizemethod 1 to Make command: occasionally makes >1MiB objects;
- declare root_table all MPS_RANK_AMBIG.
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Change: 167726
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pre-allocate GC messages after the first trace, and verify that
everything still works, droppedMessages is incremented, and reported
as non-zero (in diagnostic varieties only) by global.c on
ArenaDestroy. Test passes.
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Change: 166956
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re-create them immediately after a trace sends its last message.
Store them, one per TraceId, in ArenaStruct. Cope correctly if they
cannot be created (ControlAlloc fails). Destroy them correctly on
mps_arena_destroy. See job001989 and design/message-gc#lifecycle
(not yet written).
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Change: 166918
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function; MPS calls it synchronously on collection start/stop
(immediately after posting start/stop message). The callback
receives two ints: alertcode (start|stop; see mps.h), and whycode
(trace->why). Note: callback is also called for heap walk
start/stop.
amcss.c: show start/stop alerts.
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Change: 166703
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the whole of a given diag, so memoize it (instead of repeating the
match for every line of the diag).
locus.c: new diag from ChainCondemnAuto.
trace.c: tidy up TraceStart diag, give traceFindGrey diag a tag.
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Change: 163077
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report helpfully if poor programmer forgot to end a tag.
FilterOutput: really filters now, but only on Tag.
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Change: 163070
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diag.c: support tagging of diagnostics, and avoid having to
say DIAG_STREAM every time, with new macros:
DIAG_SINGLEF, DIAG_FIRSTF, DIAG_MOREF, DIAG_END.
mpm.c: new WriteF_firstformat_v required by DIAG_MOREF.
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and ToTextBuffer), and fix DIAG in TraceStart to use ToString.
(Previous hack of using the start-message's buffer only works if
the client has enabled start messages).
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Change: 162964
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PoolTrivGrey knows that a white seg is an all-white seg, and
therefore needs no greying.
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Change: 162946
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trace.c: traceFindGrey_diag: wrap calls in DIAG(), prevent report
overflow, reduce report array to 20 chars, and use WriteF.
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Change: 162937
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traceFindGrey_diag() function (preparatory to leaving it in when
integrating to master).
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Change: 162676
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Represent runs of the same rank as "Rx" where R is rank and x is
0..9, a..z (x10), or *. This makes output smaller.
Accumulate report, and only output at end of trace.
Represent "no more grey segs" as ".".
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Change: 162644
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Show that after finding one RankFINAL segment, traceFindGrey then
goes back to RankEXACT segs before tracing the next RankFINAL segment.
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Change: 162626
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Switch from DIAG_WITH_PRINTF to _WITH_STREAM_WRITEF.
(Still just from TraceStart).
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Change: 162395
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