[jira] [Created] (IGNITE-18350) Redesign two ciollection of lock modes to a bitset into the heap lock manager

["Vladislav Pyatkov (Jira)" <ji...@apache.org>]

Vladislav Pyatkov created IGNITE-18350:
------------------------------------------

             Summary: Redesign two ciollection of lock modes to a bitset into the heap lock manager
                 Key: IGNITE-18350
                 URL: https://issues.apache.org/jira/browse/IGNITE-18350
             Project: Ignite
          Issue Type: Improvement
            Reporter: Vladislav Pyatkov


We have two collection that store lock modes:
{code}
HeapLockManager.WaiterImpl#locks
HeapLockManager.WaiterImpl#intendedLocks
{code}
That is done for continent way to implement all lock manager requirement. But for optimization, we can do this through _BitSet_. The redesign is possible because we have predefined lock modes (_LockMode_) and attempts to accesses to the modes are bounded. The amount of attempts significantly less than MaxInt value.
The optimization allows using less memory for lock on each entry.



--
This message was sent by Atlassian Jira
(v8.20.10#820010)