0002642: Mac: Massive root table overflows? - Mantis

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ID

Category

Severity

Reproducibility

Date Submitted

Last Update

0002642

[Croquet] Hedgehog

major

always

02-01-06 23:41

02-01-06 23:41

Reporter

andreas

View Status

public

Assigned To

Priority

normal

Resolution

open

Status

new

Summary

0002642: Mac: Massive root table overflows?

Description

Observed on the Mac: After a while, Croquet slow down like mad (1fps) due to full GCs running on every cycle. Message tally shows that this is due to massive root overflows (see additional information below) but it is unclear why. This may also be related to other factors (ProcessBrowser showed 43% of the time in finalization process).

Additional Information

- 71278 tallies, 74367 msec.

**Tree**
63.2% {47000ms} EventSensor>>installEventTickler
  |63.2% {47000ms} EventSensor>>eventTickler
  | 63.2% {47000ms} Delay>>wait
  | 63.2% {47000ms} Semaphore>>wait
15.8% {11750ms} WeakArray class>>restartFinalizationProcess
  |15.8% {11750ms} WeakArray class>>finalizationProcess
  | 15.8% {11750ms} Semaphore>>wait
11.7% {8701ms} TRemoteControllerConnection(Object)>>fork:at:
  |5.4% {4016ms} TSimpleController(TIslandController)>>runEventLoop
  | |5.3% {3941ms} TSimpleController(TIslandController)>>advanceTo:
  | | 5.3% {3941ms} TMessageMaker>>doesNotUnderstand:
  | | 5.3% {3941ms} TFarRef>>syncSend:
  | | 5.3% {3941ms} TFarRef>>syncSend:withArguments:
  | | 5.3% {3941ms} TIsland>>advanceTo:
  | | 5.1% {3793ms} TIsland>>execute:
  | | 2.8% {2082ms} TSpace>>step
  |2.1% {1562ms} TLocalController>>runHeartbeat
  | |2.1% {1562ms} Delay>>wait
  | | 2.1% {1562ms} Semaphore>>wait
  |2.0% {1487ms} CroquetHarness>>renderProcess
  | 2.0% {1487ms} CroquetHarness>>renderWorld
7.8% {5801ms} PasteUpMorph>>doOneCycle
  7.8% {5801ms} WorldState>>doOneCycleFor:
    7.8% {5801ms} WorldState>>doOneCycleNowFor:
      4.6% {3421ms} WorldState>>displayWorldSafely:
        |4.6% {3421ms} PasteUpMorph>>displayWorld
        | 4.6% {3421ms} PasteUpMorph>>privateOuterDisplayWorld
        | 4.6% {3421ms} WorldState>>displayWorld:submorphs:
        | 4.6% {3421ms} WorldState>>drawWorld:submorphs:invalidAreasOn:
        | 4.6% {3421ms} FormCanvas(Canvas)>>fullDrawMorph:
        | 4.6% {3421ms} FormCanvas(Canvas)>>fullDraw:
        | 4.6% {3421ms} BFDParticipant(Morph)>>fullDrawOn:
        | 2.7% {2008ms} PluggableSystemWindow(Morph)>>drawSubmorphsOn:
        | 2.7% {2008ms} FormCanvas(Canvas)>>fullDrawMorph:
        | 2.7% {2008ms} FormCanvas(Canvas)>>fullDraw:
        | 2.7% {2008ms} PluggableListMorphPlus(Morph)>>fullDrawOn:
        | 2.6% {1934ms} PluggableListMorphPlus(Morph)>>drawSubmorphsOn:
        | 2.6% {1934ms} FormCanvas(Canvas)>>fullDrawMorph:
[2.6% {1934ms} FormCanvas(Canvas)>>fullDraw:
[ 2.6% {1934ms} TransformMorph(Morph)>>fullDrawOn:
      3.0% {2231ms} PasteUpMorph>>runStepMethods
        3.0% {2231ms} WorldState>>runStepMethodsIn:
          3.0% {2231ms} WorldState>>runLocalStepMethodsIn:
            3.0% {2231ms} StepMessage(MorphicAlarm)>>value:
              3.0% {2231ms} BFDParticipant(Morph)>>stepAt:
                2.9% {2157ms} BFDParticipant(CroquetParticipant)>>step
                  2.9% {2157ms} CroquetHarness>>step

**Leaves**
83.5% {62096ms} Semaphore>>wait

**Memory**
    old +235,540 bytes
    young +160,196 bytes
    used +395,736 bytes
    free -404,272 bytes

**GCs**
    full 138 totalling 57,132ms (77.0% uptime), avg 414.0ms
    incr 2455 totalling 2,445ms (3.0% uptime), avg 1.0ms
    tenures 262 (avg 9 GCs/tenure)
    root table 138 overflows

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Issue History
Date Modified	Username	Field	Change
02-01-06 23:41	andreas	New Issue

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