[Dovecot] v1.1 status and benchmarks

[Timo Sirainen]

v1.1 plans have changed a bit. I'll release v1.1.alpha1 soon and hope to
have a stable v1.1 in a month or two. The rest of the features that
didn't make it into v1.1 will go to v1.2. I'll write more about this
when v1.1 alpha is released.

I also did a bit of benchmarking. v1.1's performance improvements are
looking pretty great, it seems to be twice as fast as v1.0.

v1.0: Maildir, dovecot-1.0 hg + inotify dotlock wait patch, mmap_disable=yes
v1.1: Maildir, dovecot hg, mmap_disable=no
cydir: Cydir, dovecot hg, mmap_disable=no

1 client
--------

./imaptest logout=0 seed=1 secs=10 clients=1
      Logi List Stat Sele Fetc  Fet2 Stor Dele Expu Appe 
      100%  50%  50% 100% 100%  100%  50% 100% 100% 100% 
         		         30%                  5% 
v1.0:    1 1221 1179    1 2420  3458  323 1934 2419 2552 
v1.1:    1 2606 2597    1 5221  7352  688 4181 5221 5489 
cydir:   1 4495 4534    1 8960 12786 1216 7224 8959 9434 

10 clients
----------

./imaptest logout=0 seed=1 secs=10 clients=10
      Logi List Stat Sele  Fetc  Fet2 Stor  Dele  Expu  Appe 
      100%  50%  50% 100%  100%  100%  50%  100%  100%  100% 
                                  30%                     5% 
v1.0:   10 2058 2102   10  4157  6019 1426  3348  4157  4391 
v1.1:   10 5029 5072   10 10064 14352 3176  8092 10064 10624 
cydir:  10 6332 6393   10 12664 17965 3958 10154 12663 13336 

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