Forum Discussion
Nimbostratushttp-compression in low performance
Hi All
We have a LTM web accelerator running v11.1.
Behind LTM it is a ASP.net application which can be accessed via internet. The total of in and out internet traffic is about 100Mb. Most of the data is in text type. However, after enable http-compression, the http-compression in dashboard shows only 20Kb traffic in average!
The LTM has http-compression license up to 4Gb.
The compression in IIS has been turned off.
We have tried the selective compression options either URL or content type, but the results are the same. http-compression traffic is about 20Kb in average.
The setting in http-compression profile is follow LTM default.
In HttpFox, we can see most of the responses with type of http/html (some may up to 200KB or more) are non-compressed. Even do not have Content-Encoding header in respose.
Does it normal? Could anyone guide me to fix this issue?
Thanks!
Larry
18 Replies
What_Lies_Bene1Cirrostratus
Can you post your compression profile configuration please?
Larry_124999The screen of dashboard is attached.
- What_Lies_Bene1Sorry but it's not, even if it was DC seems to reduce the quality and make things unreadable. Can you post the CLI output of the tmsh show ltm profiles ... command instead please?
- Larry_124999
Hi Steve
I have attached the screens of profile setting.
Let me know if anything else need. Or command export (but I don't know how).
Thanks!
Larry
- What_Lies_Bene1Can you post the CLI output of the tmsh show ltm profiles ... command instead please?
- Larry_124999
Done! Ooohhh yes, both pre and post compression are all zero!
Screen of command output are attached.
- What_Lies_Bene1Sorry but I can't see any of your attachments. Can you just paste in the CLI command output for these two commands;
tmsh show ltm profiles ...
tmsh listltm profiles ... - What_Lies_Bene1Sorry but I can't see any of your attachments. Can you just paste in the CLI command output for these two commands;
tmsh show ltm profiles ...
tmsh listl tm profiles ... - What_Lies_Bene1Sorry but I can't see any of your attachments. Can you just paste in the CLI command output for these two commands;
tmsh show ltm profiles ...
tmsh list ltm profiles ... - Larry_124999Sorry for lated reply!
Below is the outpu:
admin@f5(Active)(/Common)(tmos) show ltm profile
-------------------------------------------------------------
Ltm::HTTP Compression Profile: wan-optimized-compression
-------------------------------------------------------------
Content Type Compression (bytes) Pre-Compress Post-Compress
HTML 0 0
CSS 0 0
JavaScript 0 0
XML 0 0
SGML 0 0
Plain 0 0
Octet Stream 0 0
Images 0 0
Video Files 0 0
Audio Files 0 0
Other 0 0
Total 0 0
NULL-Compress 0 0
Compression Ratio (%) 0
admin@f5(Active)(/Common)(tmos) list ltm profile
ltm profile http-compression wan-optimized-compression {
allow-http-10 enabled
buffer-size 131072
defaults-from httpcompression
gzip-memory-level 16k
gzip-window-size 64k
vary-header enabled
}
admin@f5(Active)(/Common)(tmos)
