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24 Commits

Author SHA1 Message Date
Aleksey Shipilev
17ee366ff9 8382150: Shenandoah: Clean up nmethod entry barrier support 
Reviewed-by: xpeng, kdnilsen, wkemper
 2026-04-16 18:20:29 +00:00
William Kemper
b2e431a1cb 8369068: GenShen: Generations still aren't reconciled assertion failure 
Reviewed-by: ysr, kdnilsen
 2025-10-23 19:06:47 +00:00
Francesco Andreuzzi
1d55adee11 8368989: Use NMethodMarkingScope and ThreadsClaimTokenScope in shenandoahSTWMark 
Reviewed-by: shade, ayang
 2025-10-02 18:49:00 +00:00
Francesco Andreuzzi
976207df1f 8367476: Shenandoah: Remove use of CollectedHeap::_soft_ref_policy 
Reviewed-by: ayang, wkemper
 2025-09-17 08:26:31 +00:00
Stefan Karlsson
c33c1cfe73 8347909: Automatic precompiled.hpp inclusion 
Reviewed-by: lkorinth, erikj, dholmes, ihse
 2025-01-21 10:21:24 +00:00
William Kemper
28ae281b42 8337511: Implement JEP 404: Generational Shenandoah (Experimental) 
Co-authored-by: Kelvin Nilsen <kdnilsen@openjdk.org>
Co-authored-by: Y. Srinivas Ramakrishna <ysr@openjdk.org>
Co-authored-by: Bernd Mathiske <bmathiske@openjdk.org>
Co-authored-by: Martin Doerr <mdoerr@openjdk.org>
Co-authored-by: Fei Yang <fyang@openjdk.org>
Reviewed-by: rkennke, shade, phh
 2024-11-29 20:53:07 +00:00
Aleksey Shipilev
9003524c8b 8342588: Shenandoah: Pull shared closures together in one header 
Reviewed-by: wkemper, kdnilsen, simonis
 2024-10-30 10:24:12 +00:00
Aleksey Shipilev
979895d175 8342079: Shenandoah: Remove extra ShenandoahInitMarkRootsClosure 
Reviewed-by: wkemper, rkennke
 2024-10-17 15:03:37 +00:00
Zhengyu Gu
279086d4ce 8340408: Shenandoah: Remove redundant task stats printing code in ShenandoahTaskQueue 
Reviewed-by: shade, wkemper
 2024-09-24 13:16:43 +00:00
Y. Srinivas Ramakrishna
f62f2adbc3 8325671: Shenandoah: Introduce a ShenandoahGenerationType and templatize certain marking closures with it 
In support of eventually supporting a generational version of Shenandoah, we introduce a ShenandoahGenerationType enum which currently has a single NON_GEN value for Shenandoah. The generational extension of Shenandoah will introduce additional enum values when GenShen is integrated. These will be used to specialize certain marking closures via templatization, such that suitable variations of the marking (and in the future other) closures can be used for the generational and non-generational variants of the collector while minimizing interference between the two variants while maximizing code-sharing without affecting correctness or performance.

This ticket introduces the new enum type and templatizes certain existing marking closures.

In effect, this should be semantically a no-op for current (non-generational) Shenandoah and ideally completely performance-neutral (to be established via measurements).

**Testing:**
- [x] jtreg hotspot_gc
- [x] github actions
- [ ] codepipeline perf & stress: in progress

**Performance:**
- [ ] specjbb w/shenandoah
- [ ] codepipeline perf: in progress

Reviewed-by: kdnilsen, shade
 2024-03-02 02:02:09 +00:00
Aleksey Shipilev
ece9bdfc83 8299614: Shenandoah: STW mark should keep nmethod/oops referenced from stack chunk alive 
Reviewed-by: rkennke, zgu
 2023-09-13 06:04:10 +00:00
Leo Korinth
bb5278d98a 8311239: GC: Remove trailing blank lines in source files 
Reviewed-by: tschatzl, aboldtch, mli
 2023-07-13 08:53:36 +00:00
Zhengyu Gu
239ac2a5d4 8286829: Shenandoah: fix Shenandoah Loom support 
Reviewed-by: shade
 2022-06-01 17:01:22 +00:00
Per Liden
54b8870766 8275035: Clean up worker thread infrastructure 
Reviewed-by: stefank, ayang
 2021-10-14 14:05:36 +00:00
Zhengyu Gu
7212561dd1 8267188: gc/stringdedup/TestStringDeduplicationInterned.java fails with Shenandoah 
Reviewed-by: rkennke, shade
 2021-08-25 20:16:25 +00:00
Zhengyu Gu
0b49f5ae19 8267257: Shenandoah: Always deduplicate strings when it is enabled during full gc 
Reviewed-by: rkennke
 2021-05-19 13:13:57 +00:00
Kim Barrett
be0a655208 8254598: StringDedupTable should use OopStorage 
Co-authored-by: Kim Barrett <kbarrett@openjdk.org>
Co-authored-by: Zhengyu Gu <zgu@openjdk.org>
Reviewed-by: coleenp, iklam, tschatzl, ayang
 2021-05-14 18:38:58 +00:00
Zhengyu Gu
9adbf1566a 8265995: Shenandoah: Move ShenandoahInitMarkRootsClosure close to its use 
Reviewed-by: shade
 2021-04-27 12:40:31 +00:00
Zhengyu Gu
125184e96f 8265012: Shenandoah: Backout JDK-8264718 
Reviewed-by: shade
 2021-04-12 12:47:40 +00:00
Zhengyu Gu
3aec2d9647 8264718: Shenandoah: enable string deduplication during root scanning 
Reviewed-by: shade
 2021-04-08 12:09:21 +00:00
Zhengyu Gu
7a6c176845 8260736: Shenandoah: Cleanup includes in ShenandoahGC and families 
Reviewed-by: shade, rkennke
 2021-02-05 19:30:14 +00:00
Aleksey Shipilev
bd2744dd42 8260106: Shenandoah: refactor reference updating closures and related code 
Reviewed-by: zgu, rkennke
 2021-01-27 07:17:30 +00:00
Aleksey Shipilev
c0e9c44628 8259962: Shenandoah: task queue statistics is inconsistent after JDK-8255019 
Reviewed-by: zgu
 2021-01-19 14:39:04 +00:00
Zhengyu Gu
da6bcf966a 8255019: Shenandoah: Split STW and concurrent mark into separate classes 
Reviewed-by: rkennke, shade
 2021-01-14 17:42:52 +00:00