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From "Alexander Menshikov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-4908) Ignite.reentrantLock looks much slower than IgniteCache.lock.
Date Wed, 05 Apr 2017 16:54:41 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-4908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15957227#comment-15957227
] 

Alexander Menshikov commented on IGNITE-4908:
---------------------------------------------

May be Later I will look at our lock implementations. Right now I wrote benchmark IgniteCache.lock(...)
vs Ignite.reentrantLock(...). There are results:

//Ignite.reentrantLock(...)
Benchmark                               (create)  (failoverSafe)  (fair)   Mode  Cnt     Score
    Error  Units
JmhCacheLocksBenchmark.testIgniteLocks      true            true    true  thrpt   10   873,775
±  60,388  ops/s
JmhCacheLocksBenchmark.testIgniteLocks      true            true   false  thrpt   10  1177,804
± 162,082  ops/s
JmhCacheLocksBenchmark.testIgniteLocks      true           false    true  thrpt   10   915,579
±  42,631  ops/s
JmhCacheLocksBenchmark.testIgniteLocks      true           false   false  thrpt   10  1176,044
± 108,950  ops/s
JmhCacheLocksBenchmark.testIgniteLocks     false            true    true  thrpt   10   926,890
±  37,080  ops/s
JmhCacheLocksBenchmark.testIgniteLocks     false            true   false  thrpt   10  1195,663
±  73,578  ops/s
JmhCacheLocksBenchmark.testIgniteLocks     false           false    true  thrpt   10   903,658
±  78,483  ops/s
JmhCacheLocksBenchmark.testIgniteLocks     false           false   false  thrpt   10  1159,586
±  81,717  ops/s
//IgniteCache.lock(...)
Benchmark                               Mode  Cnt     Score     Error  Units
JmhCacheLocksBenchmark.testCacheLocks  thrpt   10  8076,522 ± 786,153  ops/s

Looks like IgniteCache.lock(...) faster than Ignite.reentrantLock(...) at ~8 times.
I will investigate the reason.

> Ignite.reentrantLock looks much slower than IgniteCache.lock.
> -------------------------------------------------------------
>
>                 Key: IGNITE-4908
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4908
>             Project: Ignite
>          Issue Type: Improvement
>          Components: data structures
>    Affects Versions: 1.8
>            Reporter: Andrew Mashenkov
>            Assignee: Alexander Menshikov
>             Fix For: 2.1
>
>
> We should make a benchmark and investigate this issue.



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