[kdepim-users] Tbird versus Kmail, performance

[René J.V. Bertin]

On Friday November 14 2014, Pablo Sanchez wrote regarding "Re: Tbird versus Kmail"

Hi again,

For giggles, here's the output from iostat for the last 20% or so of syncing [All Mail] after a akonadi vacuum:

> zpool iostat Patux 3
               capacity     operations    bandwidth
pool        alloc   free   read  write   read  write
----------  -----  -----  -----  -----  -----  -----
Patux       89.0G  42.0G     11     24   266K   879K
Patux       89.0G  42.0G      0     24  21.0K   681K
Patux       89.0G  42.0G      0     47      0   892K
Patux       89.0G  42.0G      0     25  18.3K   725K
Patux       89.0G  42.0G      0     26      0   406K
Patux       89.0G  42.0G      0     33  20.3K   778K
Patux       89.0G  42.0G      0     16      0   292K
Patux       89.0G  42.0G      0     32      0   466K
Patux       89.0G  42.0G      0     14  18.7K   553K
Patux       89.0G  42.0G      0     30      0   409K
Patux       89.0G  42.0G      0     46  20.2K   999K
Patux       89.0G  42.0G      0      1      0  67.0K
Patux       89.0G  42.0G      6     50   337K  1.76M
Patux       89.0G  42.0G      1     30   169K   413K
Patux       89.0G  42.0G     52     83  3.10M  4.23M
Patux       89.0G  42.0G     13    235   830K  13.1M

Which configures there isn't much IO going on during these lengthy operations. But that stands to reason, and that the whole process is CPU bound, no, given the fact that we're only pulling headers (i.e. lots of small bits of data)?
It cannot exactly help that all this probably transits over the DBus rather than through a dedicated socket, though that would have to be confirmed (which is why this goes to the list).

Cheers,
R.
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