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Transmission 3.00/4.1.1 (binary only)⚓︎

Blocklist⚓︎

If you want to use a peer-blocklist (you can enable this in the web
interface if you are using the trunk version of Freetz), you have to
know that you have to provide a blocklist yourself. The simplest is to
make a 'update-blocklist.sh' with the content below and to invoke it
daily or so using cron (don't forget to make the file executable).

#!/var/tmp/sh

cd /path-to/bittorrent/config/blocklists/
if wget -q http://www.bluetack.co.uk/config/level1.gz ; then
        rm -f level1 && gunzip level1.gz
        killall -HUP transmission-daemon
        logger -s -t transmission "blocklist updated"
else
        logger -s -t transmission "blocklist not updated"
fi

This can be done from the transmission web interface too now.

Number of peers⚓︎

It is probably a good idea to reduce the number of peers by editing the
.../bittorrent/config/settings.json file:

    "peer-limit-global": 150,
    "peer-limit-per-torrent": 50,

You have to stop transmission before changing this! Or you could use
this command to reload the config file:

killall -HUP transmission-daemon

This can be done from the transmission web interface too now.

Memory usage⚓︎

Huge, relatively.

You will probably need a swap file and you may want to increase
swappiness to 80
or something (in Freetz WebIF since
(Changeset r6886).

  ------------------------- ------------ -----------
                            **VmSize**   **VmRSS**
  No blocklist              ~8,5 mB     ~6 mB
  level1 blocklist          ~17 mB      ~8 mB
  One torrent + blocklist   ~19 mB      ~12 mB
  ------------------------- ------------ -----------

You can monitor these values easily with the patch from ticket
Ticket #1308

Limit memory usage⚓︎

To prevent memory shortage (could cause reboots and crashing processes):

    "cache-size-mb": 1,
    "open-file-limit": 32,

The cache size is by default 2 MiB and the open file limit is by default
32.

To minimize the number of connections you could decide to forward TCP
traffic only and not UDP traffic.

Watchdog⚓︎

It may be necessary to disable the watchdog by adding this line to for
example rc.custom:

    echo "disable">/dev/watchdog