[Setup] Varnish cache does not appear to speed up page delivery

[JimL]

Hi Martin,


Martin Aspeli wrote:
> 
> 
> Try to run varnishstat and look for cache hits and misses. It's possible 
> that you've got your setup messed up. If you're testing, try to test as 
> anonymous first.
> 
> 

I'm running Apache Benchmarking (./ab -n 1000 -c 5 http://blah-blah) so all
requests are anonymous.

Looking at varnishstat to my untrained eye things look okay - only 0.11
Cache misses:

Hitrate ratio:        1        1        1
Hitrate avg:     0.0000   0.0000   0.0000

        1492        31.86         8.73 Client connections accepted
        1506        31.86         8.81 Client requests received
        1487        31.86         8.70 Cache hits for pass
          18         0.00         0.11 Cache misses
        1506        31.86         8.81 Backend connections success
          19         0.00         0.11 Backend connections reuses
          19         0.00         0.11 Backend connections recycles
           2          .            .   N struct srcaddr
           1          .            .   N active struct srcaddr
           6          .            .   N struct sess_mem
           6          .            .   N struct sess
          23          .            .   N struct object
          28          .            .   N struct objecthead
          43          .            .   N struct smf
           0          .            .   N small free smf
           2          .            .   N large free smf
           5          .            .   N struct vbe_conn
           5          .            .   N struct bereq
          10          .            .   N worker threads
          10         0.00         0.06 N worker threads created
           1         0.00         0.01 N overflowed work requests
           2          .            .   N backends
        1484        31.86         8.68 Objects sent with write
        1487        31.86         8.70 Total Sessions
        1501        31.86         8.78 Total Requests
        1483        31.86         8.67 Total pass
        1501        31.86         8.78 Total fetch
      822201     17585.92      4808.19 Total header bytes
    31384748    673617.14    183536.54 Total body bytes
        1485        31.86         8.68 Session Closed
          18         0.00         0.11 Session herd
      127549      2707.98       745.90 SHM records
        9109       191.15        53.27 SHM writes
        3007        63.72        17.58 allocator requests

Do these figures (taken during the benchmarking) seem okay to you?

Cheers,  Jim
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