Mercurial > hg > truffle

comparison src/share/vm/runtime/sweeper.cpp @ 12266:ab274453d37f

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8022883: Assertion failed: sweptCount >= flushedCount + markedCount + zombifiedCount Summary: Provide correct number of visited nmethods to Tracing Reviewed-by: kvn, iveresov
author anoll
date Wed, 18 Sep 2013 07:22:20 +0200
parents f2110083203d
children 510fbd28919c
comparison
equal deleted inserted replaced
12263:a4788ba67e20 12266:ab274453d37f
267 // invocations so divide the remaining number of nmethods by the 267 // invocations so divide the remaining number of nmethods by the
268 // remaining number of invocations. This is only an estimate since 268 // remaining number of invocations. This is only an estimate since
269 // the number of nmethods changes during the sweep so the final 269 // the number of nmethods changes during the sweep so the final
270 // stage must iterate until it there are no more nmethods. 270 // stage must iterate until it there are no more nmethods.
271 int todo = (CodeCache::nof_nmethods() - _seen) / _invocations; 271 int todo = (CodeCache::nof_nmethods() - _seen) / _invocations;
272 int swept_count = 0;
272 273
273 assert(!SafepointSynchronize::is_at_safepoint(), "should not be in safepoint when we get here"); 274 assert(!SafepointSynchronize::is_at_safepoint(), "should not be in safepoint when we get here");
274 assert(!CodeCache_lock->owned_by_self(), "just checking"); 275 assert(!CodeCache_lock->owned_by_self(), "just checking");
275 276
276 { 277 {
277 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 278 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
278 279
279 // The last invocation iterates until there are no more nmethods 280 // The last invocation iterates until there are no more nmethods
280 for (int i = 0; (i < todo || _invocations == 1) && _current != NULL; i++) { 281 for (int i = 0; (i < todo || _invocations == 1) && _current != NULL; i++) {
282 swept_count++;
281 if (SafepointSynchronize::is_synchronizing()) { // Safepoint request 283 if (SafepointSynchronize::is_synchronizing()) { // Safepoint request
282 if (PrintMethodFlushing && Verbose) { 284 if (PrintMethodFlushing && Verbose) {
283 tty->print_cr("### Sweep at %d out of %d, invocation: %d, yielding to safepoint", _seen, CodeCache::nof_nmethods(), _invocations); 285 tty->print_cr("### Sweep at %d out of %d, invocation: %d, yielding to safepoint", _seen, CodeCache::nof_nmethods(), _invocations);
284 } 286 }
285 MutexUnlockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 287 MutexUnlockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
329 if (event.should_commit()) { 331 if (event.should_commit()) {
330 event.set_starttime(sweep_start_counter); 332 event.set_starttime(sweep_start_counter);
331 event.set_endtime(sweep_end_counter); 333 event.set_endtime(sweep_end_counter);
332 event.set_sweepIndex(_traversals); 334 event.set_sweepIndex(_traversals);
333 event.set_sweepFractionIndex(NmethodSweepFraction - _invocations + 1); 335 event.set_sweepFractionIndex(NmethodSweepFraction - _invocations + 1);
334 event.set_sweptCount(todo); 336 event.set_sweptCount(swept_count);
335 event.set_flushedCount(_flushed_count); 337 event.set_flushedCount(_flushed_count);
336 event.set_markedCount(_marked_count); 338 event.set_markedCount(_marked_count);
337 event.set_zombifiedCount(_zombified_count); 339 event.set_zombifiedCount(_zombified_count);
338 event.commit(); 340 event.commit();
339 } 341 }