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https://issues.apache.org/jira/browse/IGNITE-1770?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14969253#comment-14969253
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Vladimir Ozerov commented on IGNITE-1770:
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Before digging into implementation I tried to measure optimized vs portable
marshaller deserialization using JMH and sample "Address" class having two ints
and two strings. Summary:
Object size:
Optimized: 60 bytes
Poratble: 108 bytes
Deserialization throughput:
Optimized: 3.0KK ops/sec
Portable: 2.6KK ops/sec
The I implemented some draft optimizations on reading side:
- Removed unnecessary ID mapper lookup on each field read;
- Optimized field seek algorithm for sequential reads;
- Delayed handles hash map creation when possible;
- Get rid of manual string lower-casing.
Results:
Optimized: 3.0KK ops/sec
Portable before: 2.6KK ops/sec
Portable after: 4.8KK ops/sec
As a next step I want to measure random field seek performance with and without
proposed algorithm. Then I'll start implementation.
> Portables: implement constant-time field lookup.
> ------------------------------------------------
>
> Key: IGNITE-1770
> URL: https://issues.apache.org/jira/browse/IGNITE-1770
> Project: Ignite
> Issue Type: Task
> Components: general, interop
> Affects Versions: ignite-1.4
> Reporter: Vladimir Ozerov
> Assignee: Vladimir Ozerov
> Priority: Blocker
> Fix For: 1.5
>
>
> See
> https://cwiki.apache.org/confluence/display/IGNITE/Portable+object+constant-time+field+lookup
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