2013/05/24

Squid Efficiency Analyzer 1.10

Squid Efficiency Analyzer 1.10 -

SquidEff.JPG

Squid Efficiency Analyzer - open a log file and start analysis. Wait for the results which are shown in an table (detailled view) and in a text field (summary). You may then export the results to a file.

Squideff checks every line of the Squid log file and assigns occurrence and traffic to the different cache codes. Afterwards, traffic from cache and internet are calculated.

Squid Efficiency Analyzer Report Explanation:

Theese codes are provided as being data coming from the cache:
  • TCP_HIT
  • TCP_REFRESH_HIT
  • TCP_REF_FAIL_HIT
  • TCP_IMS_HIT
  • TCP_MEM_HIT
  • TCP_OFFLINE_HIT
  • UDP_HIT
The following codes are calculated as data coming from the internet:
  • TCP_MISS
  • TCP_REFRESH_MISS
  • TCP_CLIENT_REFRESH_MISS
  • TCP_SWAPFAIL_MISS
  • UDP_MISS
The rest is shown as not considered for efficiency:
  • TCP_NEGATIVE_HIT
  • TCP_DENIED
  • UDP_DENIED
  • UDP_INVALID
  • UDP_MISS_NOFETCH
  • NONE

For an explanation from the report of the codes see below.
##Cache Result Codes##
TCP_HIT
A valid copy of the requested object was in the cache.

TCP_MEM_HIT
A valid copy of the requested object was in the cache, AND it was in
memory so it did not have to be read from disk.

TCP_NEGATIVE_HIT
The request was for a negatively-cached object. Negative-caching refers
to caching certain types of errors, such as "404 Not Found." The amount
of time these errors are cached is controlled with the negative_ttl
configuration parameter.

TCP_MISS
The requested object was not in the cache.

TCP_REFRESH_HIT
The object was in the cache, but STALE. An If-Modified-Since request was
made and a "304 Not Modified" reply was received.

TCP_REF_FAIL_HIT
The object was in the cache, but STALE. The request to validate the object
failed, so the old (stale) object was returned.

TCP_REFRESH_MISS
The object was in the cache, but STALE. An If-Modified-Since request was
made and the reply contained new content.

TCP_CLIENT_REFRESH
The client issued a request with the "no-cache" pragma.

TCP_IMS_HIT
The client issued an If-Modified-Since request and the object was in the
cache and still fresh.

TCP_IMS_MISS
The client issued an If-Modified-Since request for a stale object.

TCP_SWAPFAIL
The object was believed to be in the cache, but could not be accessed.

TCP_DENIED
Access was denied for this request

UDP_HIT
A valid copy of the requested object was in the cache.

UDP_HIT_OBJ
Same as UDP_HIT, but the object data was small enough to be sent in the UDP
reply packet. Saves the following TCP request.

UDP_MISS
The requested object was not in the cache.

UDP_DENIED
Access was denied for this request.

UDP_INVALID
An invalid request was received.

UDP_RELOADING
The ICP request was "refused" because the cache is busy reloading its metadata.

Download Squid Efficiency Analyzer


squideff.zip - 349.07 KB

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