{"author":"liuhanyang@pingcap.com","meta":{"ops_req":{"applicant":"li…

…uhanyang@pingcap.com","release_id":"30074","change_id":"62126"}}}

{"author":"liuhanyang@pingcap.com","meta":{"ops_req":{"applicant":"li…

…uhanyang@pingcap.com","release_id":"30071","change_id":"62044"}}}

gc_state_manager: Workaround mutex contention in high-concurrency sce…

…nario (#10615)

ref #10607

This PR provides a simpler workaround to the issue that when PD receives too many GC-related requests, it may suffer bad performace on the mutex of GCStateManager's mutex.

In the follwing cases, the GCState will be fully loaded and inserted to a memory cache:
* When GetGCState/GetAllKeyspacesGCState encounters a cache miss and reads the actual GCState from etcd
* When AdvanceTxnSafePoint is called

In the following cases, the GCState cache will be incrementally updated if it already exists in the cache:
* When AdvanceGCSafePoint/SetGCBarrier/DeleteGCBarrier is called

Also note that UpdateServiceGCSafePoint is internally redirected to one of AdvanceTxnSafePoint SetGCBarrier or DeleteGCBarrier.

Signed-off-by: MyonKeminta <MyonKeminta@users.noreply.github.com>

server: add GC request metrics (#10610)

 

server: add GC request metrics

Signed-off-by: okjiang <819421878@qq.com>

chore: bump tidb-dashboard version (#10580)

 

Signed-off-by: Suhaha <jklopsdfw@gmail.com>

[cherry-pick] pd: report hot read cpu in heartbeat (#10510)

close #5718

Signed-off-by: lhy1024 <admin@liudos.us>

chore(dashboard): update TiDB Dashboard to 20260330041600-b189ae3f181…

…f [release-8.5] (#10512)

close #10511

chore(dashboard): update TiDB Dashboard to 20260330041600-b189ae3f181f [release-8.5]

Signed-off-by: yibin87 <huyibin@pingcap.com>

*: support tso client suffixbit mechanism (#10340)

* suffixbit

Signed-off-by: tongjian <1045931706@qq.com>

* revert some changes

Signed-off-by: tongjian <1045931706@qq.com>

* refactor

Signed-off-by: tongjian <1045931706@qq.com>

* lint

Signed-off-by: tongjian <1045931706@qq.com>

* revert

Signed-off-by: tongjian <1045931706@qq.com>

* remove local tso test

Signed-off-by: tongjian <1045931706@qq.com>

---------

Signed-off-by: tongjian <1045931706@qq.com>

{"author":"tongjian@pingcap.com"}

{"author":"tongjian@pingcap.com"}