archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-26 14:24:46 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

6819061: G1: eliminate serial Other times that are proportional to the collection set length

Browse source 
6871109: G1: remove the concept of the scan only prefix

Removed scan only regions and associated code. The young portion of the collection set is now constructed incrementally - when a young region is retired as the current allocation region it is added to the collection set.

Reviewed-by: apetrusenko, iveresov, tonyp
This commit is contained in:
John Cuthbertson 2010-04-22 10:02:38 -07:00
parent db6aad1e4e
commit b1867e0dd5
12 changed files with 895 additions and 1013 deletions
Download patch file Download diff file Expand all files Collapse all files

8
hotspot/src/share/vm/gc_implementation/g1/heapRegion.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright 2001-2009 Sun Microsystems, Inc. All Rights Reserved.
* Copyright 2001-2010 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -450,7 +450,9 @@ HeapRegion(G1BlockOffsetSharedArray* sharedOffsetArray,
_young_type(NotYoung), _next_young_region(NULL),
_next_dirty_cards_region(NULL),
_young_index_in_cset(-1), _surv_rate_group(NULL), _age_index(-1),
_rem_set(NULL), _zfs(NotZeroFilled)
_rem_set(NULL), _zfs(NotZeroFilled),
_recorded_rs_length(0), _predicted_elapsed_time_ms(0),
_predicted_bytes_to_copy(0)
{
_orig_end = mr.end();
// Note that initialize() will set the start of the unmarked area of the
@ -733,7 +735,7 @@ void HeapRegion::print_on(outputStream* st) const {
else
st->print(" ");
if (is_young())
st->print(is_scan_only() ? " SO" : (is_survivor() ? " SU" : " Y "));
st->print(is_survivor() ? " SU" : " Y ");
else
st->print(" ");
if (is_empty())