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[Vangelis Tasoulas <cyberang3l@xxxxxxxxx>]

Having exactly the same problem. 3gigs of RAM on a karmic 64bit installation...
2GB free and when linuxdcpp hashes large files, it is using more than 1GB of swap that makes my computer very slow at the time of this operation...

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Excessive swapping during hash
https://bugs.launchpad.net/bugs/376896
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Status in Linux DC++: New

Bug description:
There is a reproducable problem in linuxdcpp (or maybe it is the kernel/libc?), where hashing a large file causes excessive swapping to occur, while memory usage is far from 100%. I've seen this on at least two different machines, both working under gentoo amd64 and both using 2.6.29.2 kernel.
Steps to reproduce:
1. Start X/GNOME/KDE, some programs in the background to give system something to swap
2. Start hashing some _big_ files (say, 2GIG and more on a system with 4GiGs of RAM)
3. See swapping to occur

I don't know whether thisi is a kernel or stdlib or linuxdcpp issue, but I only see such swapping with linuxdcpp

Here is a "vmstat 2" output during hashing of two big files in the attachment