Perfect, thanks Mikhail On 10/30/06, Mikhail Fursov <[EMAIL PROTECTED]> wrote:
Is it the same? http://citeseer.ist.psu.edu/630853.html or http://www.cs.technion.ac.il/~erez/Papers/parallel-compaction.ps On 10/30/06, Rana Dasgupta <[EMAIL PROTECTED]> wrote: > > Hi, > Does anyone have an accessible reference to the OOPSLA paper "An > efficient > parallel heap compaction algorithm" by Abuaiadh, Ossia, Petrank, > Silbershtein ....that is cited as a reference in the paper Xiao Feng > points > to below? All my google searches lead to the ACM Portal :-) > > Thanks, > Rana > > > On 10/27/06, Xiao-Feng Li <[EMAIL PROTECTED]> wrote: > > > > Hi, all, the plan for GCv5 parallel compaction is to apply the idea of > > Compressor [1]. But it has an issue I want to discuss with you. > > Compressor needs to reserve an unmapped virtual space for compaction. > > The size of the reserved part is the same as that of copy reserve > > space in a semi-space collector. This means about that part of the > > virtual space is unusable for the JVM. In a typical setting, the > > wasted part is half size of the total compaction space. If we have 1GB > > physical memory, the JVM is ok for Compressor because the virtual > > space is large enough to wast half; but if the phsical memory is >2GB, > > Compressor may have a problem in 32bit machine: some of phsical mapped > > space might be wasted. > > > > Any opinion on this? > > > > Thanks, > > xiaofeng > > > > [1] http://www.cs.technion.ac.il/~erez/Papers/compressor-pldi.pdf > > > > -- Mikhail Fursov
