Question about "<news>/db/history" file size

Russ Allbery rra at
Wed Apr 22 19:18:42 UTC 2009

Julien ÉLIE <julien at> writes:

>> Yes, you are certainly right. But I am more interested in the practical
>> side of the issue. With something like this success story: "my history
>> file size is ~20 GBytes, daily expire process uses ~5 GBytes of memory
>> (and works ~1 hour), no problem".
> Is it makehistory which uses that amount of RAM?
> (Maybe there is a memory leak somewhere?)

makehistory and innd both mmap the history file index, which I suspect
is where the memory usage is coming from.

Russ Allbery (rra at             <>

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