Opened 15 months ago

Closed 14 months ago

#2247 closed enhancement (duplicate)

Improved locking and reduced object churn in EventPumper

Reported by: Zlatin Balevsky Owned by: zzz
Priority: minor Milestone: 0.9.36
Component: router/transport Version: 0.9.34
Keywords: ntcp nio Cc:
Parent Tickets: Sensitive: no

Description

I put together the following patch: ​http://zerobin.i2p/?96d2071efa6a9ff1#mHnx9YaWjXBe00yjKcEjzMFEL37uAoPtCakYmRhYA0E=

It does several things:

  • gets rid of object churn inherent in LinkedBlockingQueue
  • reduces blockage of EventPumper thread by using tryLock()
  • increases CPU cache hit ratio by preferring recently used ByteBuffers

I'll deploy it soon to my busy router to judge if it has any impact on performance and update this ticket.

Subtickets

Change History (3)

comment:1 Changed 15 months ago by zzz

Component: unspecified → router/transport
Milestone: undecided → 0.9.36
Owner: set to zzz
Status: new → accepted

Probably can't blame jrandom for this one, but I may try… to be researched.

comment:2 Changed 14 months ago by zzz

#2263 entered for generic LBQ caching issue

comment:3 Changed 14 months ago by Zlatin Balevsky

Resolution: → duplicate
Status: accepted → closed

Closing as duplicate as a more generic solution is implemented in ticket #2263

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