Mercurial > hg > graal-compiler
comparison src/share/vm/memory/cardTableModRefBS.cpp @ 20278:2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
Contributed-by: stefan.karlsson@oracle.com, mikael.gerdin@oracle.com
author | stefank |
---|---|
date | Mon, 07 Jul 2014 10:12:40 +0200 |
parents | 78bbf4d43a14 |
children | 1f1d373cd044 |
comparison
equal
deleted
inserted
replaced
20277:882004b9e7e1 | 20278:2c6ef90f030a |
---|---|
427 void CardTableModRefBS::non_clean_card_iterate_possibly_parallel(Space* sp, | 427 void CardTableModRefBS::non_clean_card_iterate_possibly_parallel(Space* sp, |
428 MemRegion mr, | 428 MemRegion mr, |
429 OopsInGenClosure* cl, | 429 OopsInGenClosure* cl, |
430 CardTableRS* ct) { | 430 CardTableRS* ct) { |
431 if (!mr.is_empty()) { | 431 if (!mr.is_empty()) { |
432 // Caller (process_strong_roots()) claims that all GC threads | 432 // Caller (process_roots()) claims that all GC threads |
433 // execute this call. With UseDynamicNumberOfGCThreads now all | 433 // execute this call. With UseDynamicNumberOfGCThreads now all |
434 // active GC threads execute this call. The number of active GC | 434 // active GC threads execute this call. The number of active GC |
435 // threads needs to be passed to par_non_clean_card_iterate_work() | 435 // threads needs to be passed to par_non_clean_card_iterate_work() |
436 // to get proper partitioning and termination. | 436 // to get proper partitioning and termination. |
437 // | 437 // |
438 // This is an example of where n_par_threads() is used instead | 438 // This is an example of where n_par_threads() is used instead |
439 // of workers()->active_workers(). n_par_threads can be set to 0 to | 439 // of workers()->active_workers(). n_par_threads can be set to 0 to |
440 // turn off parallelism. For example when this code is called as | 440 // turn off parallelism. For example when this code is called as |
441 // part of verification and SharedHeap::process_strong_roots() is being | 441 // part of verification and SharedHeap::process_roots() is being |
442 // used, then n_par_threads() may have been set to 0. active_workers | 442 // used, then n_par_threads() may have been set to 0. active_workers |
443 // is not overloaded with the meaning that it is a switch to disable | 443 // is not overloaded with the meaning that it is a switch to disable |
444 // parallelism and so keeps the meaning of the number of | 444 // parallelism and so keeps the meaning of the number of |
445 // active gc workers. If parallelism has not been shut off by | 445 // active gc workers. If parallelism has not been shut off by |
446 // setting n_par_threads to 0, then n_par_threads should be | 446 // setting n_par_threads to 0, then n_par_threads should be |