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https://issues.apache.org/jira/browse/IGNITE-24267?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladislav Pyatkov updated IGNITE-24267:
---------------------------------------
Description:
h3. Motivation
We preallocate much memory on the lock manager initialization.
{code}
locks = new ConcurrentHashMap<>(lockMapSize);
LockState[] tmp = new LockState[rawSlotsMaxSize];
for (int i = 0; i < tmp.length; i++) {
LockState lockState = new LockState();
if (i < lockMapSize) {
empty.add(lockState);
}
tmp[i] = lockState;
}
slots = tmp; // Atomic init.
{code}
> Reduce heap footprint for Lock manager
> --------------------------------------
>
> Key: IGNITE-24267
> URL: https://issues.apache.org/jira/browse/IGNITE-24267
> Project: Ignite
> Issue Type: Improvement
> Reporter: Vladislav Pyatkov
> Assignee: Vladislav Pyatkov
> Priority: Major
>
> h3. Motivation
> We preallocate much memory on the lock manager initialization.
> {code}
> locks = new ConcurrentHashMap<>(lockMapSize);
> LockState[] tmp = new LockState[rawSlotsMaxSize];
> for (int i = 0; i < tmp.length; i++) {
> LockState lockState = new LockState();
> if (i < lockMapSize) {
> empty.add(lockState);
> }
> tmp[i] = lockState;
> }
> slots = tmp; // Atomic init.
> {code}
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