[TS-4924] Protocol plugin performance penalty

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Fix Version/s: sometime
• Component/s: Performance, Plugins
• Assignee: Unassigned
• Reporter: James Peach
• Created: 03/Oct/16 19:08
• Updated: 12/Oct/16 18:39

Description

It looks like protocol plugins take a significant performance penalty compared to doing the same work in the code.

Configuratation:

[root@fedora-23 ~]# cat /opt/ats/etc/trafficserver/remap.config
map http://generator.jpeach.org/ http://127.0.0.1/ \
	@plugin=generator.so

[root@fedora-23 ~]# cat /opt/ats/etc/trafficserver/plugin.config
passthru.so

[root@fedora-23 ~]# tail /opt/ats/etc/trafficserver/records.config
...
CONFIG config.plugin.passthru.server_ports STRING 9090

http_load:

http://generator.jpeach.org/cache/1024/1934f6c8-2cd6-46ea-9077-0532528fb1c9
[vagrant@fedora-23 ~]$ http_load -proxy 127.0.0.1:8080 -parallel 50 -seconds 20 -keep_alive 4 url.lst

We are using a generator URL of 1K that gets served from cache.

Issue Links

• is related to: TS-4923 Add passthru example plugin
• is related to: TS-4960 Undo internal request tunnelling hacks
• is related to: TS-4954 Use TSIOBufferCopy in the passthru example.
• is related to: TS-3777 TSHttpConnect and POST request does not fire TS_VCONN_READ_COMPLETE nor TS_VCONN_EOS
• is related to: TS-4955 Remove the global mutex from the plugin session acceptor
• relates to: TS-4960 Undo internal request tunnelling hacks
• relates to: TS-4825 Mark a transaction as not internal