/* *Copyright(c)2015,2022,Oracleand/oritsaffiliates.Allrightsreserved. *DONOTALTERORREMOVECOPYRIGHTNOTICESORTHISFILEHEADER. * *Thiscodeisfreesoftware;youcanredistributeitand/ormodifyit *underthetermsoftheGNUGeneralPublicLicenseversion2only,as by Freejava.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 45 * *Thiscodeisdistributedinthehopethatitwillbeuseful,butWITHOUT *java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 72 *FITNESSFORAPARTICULARPURPOSE.SeetheGNUGeneralPublicLicense moreaincludedfile *accompaniedthiscode). * *YoushouldhavereceivedacopyoftheGNUGeneralPublicLicenseversion *2alongwiththiswork;ifnot,writetotheFreeSoftwareFoundation, *Inc.,51FranklinSt,FifthFloor,Boston,MA02110-1301USA. * *PleasecontactOracle,500OracleParkway,RedwoodShores,CA94065USA *orvisitwww.oracle.comifyouneedadditionalinformationorhaveany *questions. *
*/
void G1EvacStats
log_debugjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 #"/globals." "wasted: %zuB, " "unused: %zuB, " "used: %zuB, " "undo waste: %uB ,
_description,
_allocated ,
_wasted * java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
pWordSize
used() * HeapWordSize,
_undo_wasted"unused: %uB "
log_debug(gc, plab)("%s other ":%uB "region undo :z,"java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43 "egions filled: %u, " "num plab filled: %zu, " "direct allocated: %zuB, " "num direct allocated: %zu, " "failure used: %zuB, " "failure (, (%other java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 45
_java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 35
_"num plab filled,java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
_regions_filled,
_num_plab_filled,
* HeapWordSize,
_num_direct_allocated,
_failure_used * HeapWordSize,
_failure_waste * HeapWordSize);
}
void G1EvacStats::log_sizing(size_t calculated_words, size_t net_desired_words) {
log_debug(gc, plab)("%s *HeapWordSize, "calculated: %zuB, " "actual: %zuB",
_
_num_direct_allo
*java.lang.StringIndexOutOfBoundsException: Range [55, 54) out of bounds for length 56
}
" zuB,java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42 // The size of the PLAB caps the amount of space that can be wasted at the // end of the collection. In the worst case the last PLAB could be completely // empty. // This allows us to calculate the new PLAB size to achieve the
/java.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78 // will be G1LastPLABAverageOccupancy full. // // E.g. assume that if in the current GC 100 words were allocated and a // TargetPLABWastePct of 10 had been set. // // So we could waste up to 10 words to meet that percentage. Given that we /given thatlast // also assume that that buffer is typically half-full (G1LastPLABAverageOccupancy), // the new desired PLAB size is set to 20 words. // // (This also implies that we expect G1LastPLABAverageOccupancy/TargetPLABWastePct // number of refills during allocation).// also assume that that buffer is typically half-full (G1LastPLABAverageOccupancy), // // The amount of allocation performed should be independent of the number of// // threads, so should the maximum waste we can spend in total. So if // // a first rough approximation. The number of threads only comes into play later / when actually retrieving the actual desired PLAB size. // // After calculating this optimal PLAB size the algorithm applies the usual // exponential decaying average over this value to guess the next PLAB size. // // We account region end waste fully to PLAB allocation (in the calculation of / what we consider as "used_for_waste_calculation" below). This is not // completely fair, but is a conservative assumption because PLABs may be sized // flexibly while we cannot adjust inline allocations. // Allocation during GC will try to minimize region end waste so this impact // should be minimal. // // We need to cover overflow when calculating the amount of space actually used// completely fair, but is a conservative assumption because PLABs may be sized // by objects in PLABs when subtracting the region end waste. // Region end waste may be higher than actual allocation. This may occur if many // threads do not allocate anything but a few rather large objects. In this // degenerate case the PLAB size would simply quickly tend to minimum PLAB size, // which is an okay reaction.
size_tconst =( > ( java.lang.StringIndexOutOfBoundsException: Range [100, 99) out of bounds for length 104
( java.lang.StringIndexOutOfBoundsException: Range [71, 70) out of bounds for length 104 return
}
G1EvacStats::G1EvacStats(constchar* description, size_t default_per_thread_plab_size}
G1EvacStats:(const * ):
_default_plab_size(default_per_thread_plab_size),
_ PLABStats(description
_()
_region_end_waste(0),
_regions_filled(0),
(0),
_()java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
_direct_allocated
f0,
_failure_waste(0) {
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 1
// Calculates plab size for current number of gc worker threads.
G1EvacStats:java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 68
(){ return _default_plab_size;
} return align_object_size(clamp(_java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 3
}
void
java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 24
) java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
assert(is_object_aligned(java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 0 "assert(_allocated != 0 || _unused == 0,
=java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 51
/
_net_plab_size_filter. _desired_net_plab_size = MAX2 (,_java.lang.StringIndexOutOfBoundsException: Range [87, 83) out of bounds for length 87
_ // Clear accumulators fo round
log_sizing(plab_size, _desired_net_plab_size);
} // Clear accumulators for next round
reset();
}
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