What is minilogd ? minilog use LOT OF RAM

Hi,

minilogd uses 40% of ram. why ?

21:43:29 up 3 days, 4:36, 1 user, load average: 4.93, 5.09, 4.66
223 processes: 215 sleeping, 4 running, 4 zombie, 0 stopped
CPU states: cpu user nice system irq softirq iowait idle
total 36.2% 0.0% 5.0% 0.0% 0.7% 1.4% 56.5%
cpu00 9.7% 0.0% 3.8% 0.0% 1.9% 3.8% 80.5%
cpu01 52.8% 0.0% 6.7% 0.0% 0.0% 1.9% 38.4%
cpu02 60.5% 0.0% 2.8% 0.0% 0.0% 0.0% 36.5%
cpu03 21.3% 0.0% 6.7% 0.0% 0.9% 0.0% 70.8%
Mem: 2055392k av, 2012444k used, 42948k free, 0k shrd, 92384k buff
1450776k actv, 279776k in_d, 30164k in_c
Swap: 2048276k av, 2048276k used, 0k free 643596k cached

PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND
3619 root 15 0 2393M 757M 276 S 0.0 37.7 1:07 0 minilogd