Re: [Sks-devel] keyserver.linux.it is changing IP

[Jeff Johnson]

On Jan 28, 2011, at 4:34 AM, Jeff Johnson wrote:
> 
> Hmmm ... the usual rule I use for scaling would
> have
>       mutex_set_max   327680
> i.e. ~10x the size of the other tunables.
> 

My bad, I grabbed the wrong DB_CONFIG. Apologies.

Here is the PTree/DB_CONFIG actually in use. Note that I try
to deliberately use minimal parameters because I'm more interested
in seeing Berkeley DB tunable scaling than most devels.

set_lg_dir              ./log
set_tmp_dir             ./tmp

set_flags               DB_LOG_AUTOREMOVE

# -- thread_count must be >= 8
#set_thread_count        64

# ================ Logging
set_lg_regionmax        1048576
set_lg_max              10485760
set_lg_bsize            2097152

# ================ Memory Pool
##set_cachesize         0 67108864 4
set_cachesize           0 134217728 1
set_mp_mmapsize         268435456

# ================ Locking
set_lk_max_locks        4096
set_lk_max_lockers      4096
set_lk_max_objects      4096
set_lk_detect           DB_LOCK_DEFAULT
mutex_set_max           81920

# ================ Replication

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