Mercurial > hg > graal-jvmci-8

comparison src/share/vm/runtime/sweeper.hpp @ 1538:bfe29ec02863

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6950075: nmethod sweeper should operate concurrently Reviewed-by: never, kvn Contributed-by: eric.caspole@amd.com
author never
date Mon, 17 May 2010 16:50:07 -0700
parents 5f24d0319e54
children c18cbe5936b8
comparison
equal deleted inserted replaced
1537:79bf863697eb 1538:bfe29ec02863
33 static int _seen; // Nof. nmethod we have currently processed in current pass of CodeCache 33 static int _seen; // Nof. nmethod we have currently processed in current pass of CodeCache
34 static int _invocations; // No. of invocations left until we are completed with this pass 34 static int _invocations; // No. of invocations left until we are completed with this pass
35 35
36 static bool _rescan; // Indicates that we should do a full rescan of the 36 static bool _rescan; // Indicates that we should do a full rescan of the
37 // of the code cache looking for work to do. 37 // of the code cache looking for work to do.
38 static bool _do_sweep; // Flag to skip the conc sweep if no stack scan happened
39 static jint _sweep_started; // Flag to control conc sweeper
38 static int _locked_seen; // Number of locked nmethods encountered during the scan 40 static int _locked_seen; // Number of locked nmethods encountered during the scan
39 static int _not_entrant_seen_on_stack; // Number of not entrant nmethod were are still on stack 41 static int _not_entrant_seen_on_stack; // Number of not entrant nmethod were are still on stack
40 42
41 static bool _was_full; // remember if we did emergency unloading 43 static bool _was_full; // remember if we did emergency unloading
42 static jint _advise_to_sweep; // flag to indicate code cache getting full 44 static jint _advise_to_sweep; // flag to indicate code cache getting full
46 48
47 static void process_nmethod(nmethod *nm); 49 static void process_nmethod(nmethod *nm);
48 public: 50 public:
49 static long traversal_count() { return _traversals; } 51 static long traversal_count() { return _traversals; }
50 52
51 static void sweep(); // Invoked at the end of each safepoint 53 static void scan_stacks(); // Invoked at the end of each safepoint
54 static void sweep_code_cache(); // Concurrent part of sweep job
55 static void possibly_sweep(); // Compiler threads call this to sweep
52 56
53 static void notify(nmethod* nm) { 57 static void notify(nmethod* nm) {
54 // Perform a full scan of the code cache from the beginning. No 58 // Perform a full scan of the code cache from the beginning. No
55 // need to synchronize the setting of this flag since it only 59 // need to synchronize the setting of this flag since it only
56 // changes to false at safepoint so we can never overwrite it with false. 60 // changes to false at safepoint so we can never overwrite it with false.