Re: store_avg_object_size

Does cachemgr report the average object size grabbed. I looked at the read
histogram and it looks like this.

HTTP I/O
number of reads: 5093
deferred reads: 0 (0%)
Read Histogram:
    1- 1: 0 0%
    2- 2: 0 0%
    3- 4: 1 0%
    5- 8: 16 0%
    9- 16: 1 0%
   17- 32: 6 0%
   33- 64: 24 0%
   65- 128: 84 2%
  129- 256: 494 10%
  257- 512: 776 15%
  513- 1024: 524 10%
 1025- 2048: 2194 43%
 2049- 4096: 633 12%
 4097- 8192: 238 5%
 8193-16384: 79 2%
16385-32768: 17 0%

so if i set:
store_avg_object_size 4

that would cover 90% of all the reads or am I looking in the wrong place.

Alex Rousskov wrote:
>
> On Fri, 6 Nov 1998, Rodney Holm wrote:
>
> > What exactly is the store_avg_object_size?
>
> It is your estimation of the average (mean) size of a stored (cached)
> object. Squid uses store_avg_object_size to estimate the _number_ of objects
> (store entries) given the size of a cache.
>
> number_of_objects = cache_size / store_avg_object_size
>
> cache_size comes from your cache_dir entries in squid.conf.
>
> Finally, if you overestimate store_avg_object_size, Squid will run out of
> pre-allocated store entries (place-holders for swap files). If you
> underestimate store_avg_object_size, Squid will use more RAM than needed.
>
> Alex.

-- 
-------------------------------------------------------------------------------
Rodney D. Holm                  rodneyh@apexxtech.com
Apexx Technology, Inc.          http://www.apexxtech.com
-------------------------------------------------------------------------------