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https://issues.apache.org/jira/browse/IGNITE-12087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16911520#comment-16911520
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Dmitriy Pavlov commented on IGNITE-12087:
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[~mstepachev] could you take a look at this issue?
> Transactional putAll - significant performance drop on big batches of entries.
> ------------------------------------------------------------------------------
>
> Key: IGNITE-12087
> URL: https://issues.apache.org/jira/browse/IGNITE-12087
> Project: Ignite
> Issue Type: Bug
> Components: cache
> Reporter: Pavel Pereslegin
> Priority: Major
>
> After IGNITE-5227 have been fixed I found significant performance drop in
> putAll operation.
> Insertion of 30_000 entries before IGNITE-5227 took ~1 second.
> After IGNITE-5227 - 130 seconds (~100x slower).
> I checked a different batch size:
> 10_000 - 10 seconds
> 20_000 - 48 seconds
> 30_000 - 130 seconds
> and I was not able to wait for the result of 100_000 entries.
> Reproducer
> {code:java}
> public class CheckPutAll extends GridCommonAbstractTest {
> @Override protected IgniteConfiguration getConfiguration(String
> igniteInstanceName) throws Exception {
> IgniteConfiguration cfg = super.getConfiguration(igniteInstanceName);
> CacheConfiguration ccfg = new CacheConfiguration(DEFAULT_CACHE_NAME);
> ccfg.setAtomicityMode(TRANSACTIONAL);
> cfg.setCacheConfiguration(ccfg);
> return cfg;
> }
> @Test
> public void check() throws Exception {
> int cnt = 30_000;
> Map<Integer, Integer> data = new HashMap<>(U.capacity(cnt));
> for (int i = 0; i < cnt; i++)
> data.put(i, i);
> Ignite node0 = startGrid(0);
> IgniteCache<Integer, Integer> cache0 =
> node0.cache(DEFAULT_CACHE_NAME);
> cache0.putAll(data);
> }
> }{code}
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