Mercurial > hg > truffle

comparison src/os/solaris/vm/os_solaris.cpp @ 8854:754c24457b20

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM Summary: Ergonomics now also takes available virtual memory into account when deciding for a heap size. The helper method to determine the maximum allocatable memory block now uses the appropriate OS specific calls to retrieve available virtual memory for the java process. In 32 bit environments this method now also searches for the maximum actually reservable amount of memory. Merge previously separate implementations for Linux/BSD/Solaris into a single method. Reviewed-by: jmasa, tamao
author tschatzl
date Wed, 27 Mar 2013 19:21:18 +0100
parents 15401203db6b
children b9a918201d47 8be1318fbe77
comparison
equal deleted inserted replaced
8853:2e093b564241 8854:754c24457b20
472 472
473 julong os::Solaris::_physical_memory = 0; 473 julong os::Solaris::_physical_memory = 0;
474 474
475 julong os::physical_memory() { 475 julong os::physical_memory() {
476 return Solaris::physical_memory(); 476 return Solaris::physical_memory();
477 }
478
479 julong os::allocatable_physical_memory(julong size) {
480 #ifdef _LP64
481 return size;
482 #else
483 julong result = MIN2(size, (julong)3835*M);
484 if (!is_allocatable(result)) {
485 // Memory allocations will be aligned but the alignment
486 // is not known at this point. Alignments will
487 // be at most to LargePageSizeInBytes. Protect
488 // allocations from alignments up to illegal
489 // values. If at this point 2G is illegal.
490 julong reasonable_size = (julong)2*G - 2 * LargePageSizeInBytes;
491 result = MIN2(size, reasonable_size);
492 }
493 return result;
494 #endif
495 } 477 }
496 478
497 static hrtime_t first_hrtime = 0; 479 static hrtime_t first_hrtime = 0;
498 static const hrtime_t hrtime_hz = 1000*1000*1000; 480 static const hrtime_t hrtime_hz = 1000*1000*1000;
499 const int LOCK_BUSY = 1; 481 const int LOCK_BUSY = 1;