Opened 22 months ago

Last modified 22 months ago

#2264 new enhancement

Reduce blockage in EventPumper

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

Description

EventPumper is frequently blocked on the LinkedHashSet monitors in the Reader and Writer. See attached YourKit screenshot.

I will be updating this ticket as I experiment with various approaches to reducing that blockage.

Subtickets

Attachments (1)

EventPumperMonitor.png​ (294.2 KB) - added by Zlatin Balevsky 22 months ago.
Blockage analysis as reported by Yourkit

Download all attachments as: .zip

Change History (2)

Changed 22 months ago by Zlatin Balevsky

Attachment: EventPumperMonitor.png​ added

Blockage analysis as reported by Yourkit

comment:1 Changed 22 months ago by Zlatin Balevsky

I put together the following patch ​http://zerobin.i2p/?df7ef6e17462b77b#aTAPsgSnHopedS7gVA3LoIcBk9phRL+qlKzVo4kb9Do= (it also includes #2247)

It introduces two threads called "transit" between EventPumper and the NTCP Reader and Writer threads.

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