Small usage of swap memory 334

the ps is very long: PID TTY TIME CMD 1 ? 00:00:01 init 2 ? 00:00:02 migration-0 3 ? 00:00:00 ksoftirqd-0 4 ? 00:00:02 migration-1 5 ? 00:00:00 ksoftirqd-1 6 ? 00:00:00 events-0 7 ? 00:00:00 events-1 8 ? 00:00:00 khelper 9 ? 00:00:00 kacpid 40 ? 00:05:59 kblockd-0 41 ? 00:06:01 kblockd-1 53 ? 00:04:32 kswapd0 54 ? 00:00:00 aio-0 55 ? 00:00:00 aio-1 191 ? 00:00:00 kseriod 324 ? 00:00:11 md0raid1 363 ? 00:02:55 reiserfs-0 364 ? 00:02:57 reiserfs-1 747 ? 00:00:12 md1raid1 973 ? 00:00:00 khubd 2127 ? 00:16:30 syslogd 2130 ? 00:00:00 klogd 2138 ? 00:00:00 inetd 2327 ? 00:19:14 master 2331 ? 01:59:36 qmgr 2345 ? 00:00:00 sshd 2359 ? 00:00:05 ntpd 2370 ? 00:00:21 mdadm 2380 ? 00:00:00 atd 2383 ? 00:00:12 cron 2399 ? 00:00:04 ircd 2414 ? 00:00:01 miniserv.pl 2416 ? 00:01:57 apache 2420 ? 00:00:00 nsrexecd 2427 ? 00:00:00 nsrexecd 2431 tty1 00:00:00 getty 2438 tty2 00:00:00 getty 2439 tty3 00:00:00 getty 2440 tty4 00:00:00 getty 2441 tty5 00:00:00 getty 2442 tty6 00:00:00 getty 2505 ? 00:01:30 vlogger 2506 ? 01:46:14 vlogger 27122 ? 00:00:00 mysqldsafe 27160 ? 00:00:00 mysqldsafe 27161 ? 00:02:09 mysqld 25361 ? 00:00:00 sshd 25856 ? 00:00:00 sshd 25868 plus 1 pts-0 00:00:00 bash 24051 ? 00:00:05 anvil 26649 ? 00:00:00 sshd 26652 ? 00:00:17 sshd 26653 ? 00:00:18 sftp-server 11668 ? 00:01:13 trivial-rewrite 26422 ? 00:00:00 apache 268 plus 107 ? 00:00:13 pdflush 10075 ? 00:00:00 sshd 10206 ? 00:00:00 sshd 10256 ? 00:00:00 sftp-server 28486 ? 00:00:00 sshd 28518 ? 00:00:00 sshd 28522 ? 00:00:00 sftp-server 18944 ? 00:00:00 proxymap 19122 ? 00:00:00 scache 19283 ? 00:00:00 smtp 19385 ? 00:00:00 smtp 19486 ? 00:00:00 smtp 19636 ? 00:00:00 smtp 26518 ? 00:00:00 apache 27274 ? 00:00:00 cleanup 27704 ? 00:00:00 cleanup 27737 ? 00:00:00 cleanup 28483 ? 00:00:00 pdflush 29036 ? 00:00:00 smtp 29084 ? 00:00:00 smtp 29407 ? 00:00:00 pickup 30982 ? 00:00:00 sshd 31007 ? 00:00:28 sshd 31008 ? 00:02:33 rsync 31048 ? 00:00:00 apache 32629 ? 00:00:00 local 1485 ? 00:00:00 smtp 1489 ? 00:00:00 smtp 1499 ? 00:00:00 smtp 2301 ? 00:00:00 apache 3297 ? 00:00:00 apache 3325 ? 00:00:00 apache 3472 ? 00:00:00 apache 4406 ? 00:00:00 apache 4660 ? 00:00:00 smtpd 4906 ? 00:00:00 apache 4935 ? 00:00:00 apache 5019 ? 00:00:00 apache 5040 ? 00:00:00 apache 5364 ? 00:00:00 apache 5503 ? 00:00:00 apache 5539 ? 00:00:00 apache 5542 ? 00:00:00 apache 5543 ? 00:00:00 apache 5667 ? 00:00:00 apache 5675 ? 00:00:00 apache 5680 ? 00:00:00 apache 5858 ? 00:00:00 apache 5860 ? 00:00:00 apache 6040 ? 00:00:00 apache 6041 ? 00:00:00 apache 6064 ? 00:00:00 apache 6065 ? 00:00:00 apache 6198 ? 00:00:00 apache 6202 ? 00:00:00 apache 6283 ? 00:00:00 smtp 6347 ? 00:00:00 smtp 6352 ? 00:00:00 smtp 6413 ? 00:00:00 apache 6414 ? 00:00:00 apache 6420 ? 00:00:00 apache 6424 ? 00:00:00 smtp 6426 ? 00:00:00 smtp 6434 ? 00:00:00 apache 6435 ? 00:00:00 apache 6437 ? 00:00:00 apache 6438 ? 00:00:00 apache 6439 ? 00:00:00 apache 6587 ? 00:00:00 smtp 6592 ? 00:00:00 apache 6594 ? 00:00:00 apache 6595 ? 00:00:00 apache 6600 ? 00:00:00 smtp 6613 ? 00:00:00 apache 6614 ? 00:00:00 apache 6615 ? 00:00:00 apache 6617 ? 00:00:00 apache 6618 ? 00:00:00 apache 6619 ? 00:00:00 apache 6653 ? 00:00:00 apache 6671 ? 00:00:00 apache 6672 ? 00:00:00 apache 6680 ? 00:00:00 apache 6681 ? 00:00:00 apache 6707 ? 00:00:00 smtpd 6722 ? 00:00:00 apache 6728 ? 00:00:00 apache 6730 ? 00:00:00 apache 6732 ? 00:00:00 apache 6741 ? 00:00:00 apache 6743 ? 00:00:00 apache 6744 ? 00:00:00 apache 6745 ? 00:00:00 apache 6746 ? 00:00:00 apache 6748 ? 00:00:00 apache 6751 ? 00:00:00 apache 6752 ? 00:00:00 apache 6797 ? 00:00:00 bounce 7078 ? 00:00:00 smtpd 7119 ? 00:00:00 apache 7315 ? 00:00:00 apache 7334 ? 00:00:00 apache 7345 ? 00:00:00 apache 7346 ? 00:00:00 apache 7347 ? 00:00:00 apache 7395 ? 00:00:00 apache 7406 ? 00:00:00 apache 7410 ? 00:00:00 apache 7411 ? 00:00:00 apache 7412 ? 00:00:00 apache 7413 ? 00:00:00 apache 7436 ? 00:00:00 apache 7437 ? 00:00:00 apache 7438 ? 00:00:00 apache 7440 ? 00:00:00 apache 7441 ? 00:00:00 apache 7442 ? 00:00:00 apache 7443 ? 00:00:00 apache 7444 ? 00:00:00 apache 7445 ? 00:00:00 apache 7446 ? 00:00:00 apache 7447 ? 00:00:00 apache 7448 ? 00:00:00 apache 7450 ? 00:00:00 apache 7568 plus 1 ? 00:00:00 apache 7577 ? 00:00:00 apache 7578 ? 00:00:00 apache 7579 ? 00:00:00 apache 7580 ? 00:00:00 apache 7581 ? 00:00:00 apache 7582 ? 00:00:00 apache 7587 ? 00:00:00 apache 7588 ? 00:00:00 apache 7589 ? 00:00:00 apache 7590 ? 00:00:00 apache 7592 ? 00:00:00 apache 7635 ? 00:00:00 apache 7636 ? 00:00:00 apache 7637 ? 00:00:00 apache 7638 ? 00:00:00 apache 7639 ? 00:00:00 apache 7640 ? 00:00:00 apache 7642 ? 00:00:00 apache 7644 ? 00:00:00 apache 7645 ? 00:00:00 apache 7646 ? 00:00:00 apache 7709 ? 00:00:00 apache 7767 ? 00:00:00 apache 8029 ? 00:00:00 apache 8140 ? 00:00:00 apache 8151 ? 00:00:00 apache 8152 ? 00:00:00 apache 8166 ? 00:00:00 apache 8167 ? 00:00:00 apache 8168 ? 00:00:00 apache 8168 plus 1 ? 00:00:00 apache 8176 ? 00:00:00 apache 8178 ? 00:00:00 apache 8179 ? 00:00:00 apache 8180 ? 00:00:00 apache 8182 ? 00:00:00 apache 8183 ? 00:00:00 apache 8190 ? 00:00:00 apache 8191 ? 00:00:00 apache 8192 ? 00:00:00 apache 8193 ? 00:00:00 apache 8194 ? 00:00:00 apache 8195 ? 00:00:00 apache 8196 ? 00:00:00 apache 8197 ? 00:00:00 apache 8199 ? 00:00:00 apache 8201 ? 00:00:00 apache 8202 ? 00:00:00 apache 8204 ? 00:00:00 apache 8205 ? 00:00:00 apache 8211 ? 00:00:00 apache 8212 ? 00:00:00 apache 8213 ? 00:00:00 apache 8214 ? 00:00:00 apache 8215 ? 00:00:00 apache 8216 ? 00:00:00 apache 8218 ? 00:00:00 apache 8219 ? 00:00:00 apache 8220 ? 00:00:00 apache 8221 ? 00:00:00 apache 8222 ? 00:00:00 apache 8224 ? 00:00:00 apache 8225 ? 00:00:00 apache 8226 ? 00:00:00 apache 8227 ? 00:00:00 apache 8228 ? 00:00:00 apache 8230 ? 00:00:00 apache 8231 ? 00:00:00 apache 8232 ? 00:00:00 apache 8233 ? 00:00:00 apache 8234 ? 00:00:00 apache 8235 ? 00:00:00 apache 8237 ? 00:00:00 apache 8238 ? 00:00:00 apache 8240 ? 00:00:00 apache 8241 ? 00:00:00 apache 8289 ? 00:00:00 apache 8308 ? 00:00:00 apache 8309 ? 00:00:00 apache 8616 ? 00:00:00 bounce 8677 ? 00:00:00 bounce 8719 ? 00:00:00 sshd 8783 pts-1 00:00:00 bash 8815 ? 00:00:00 bounce 8867 ? 00:00:00 smtp 8892 ? 00:00:00 smtp 8895 ? 00:00:00 smtp 8917 ? 00:00:00 smtp 8919 ? 00:00:00 smtp 8928 ? 00:00:00 smtp 8930 ? 00:00:00 smtp 8949 ? 00:00:00 smtp 8950 ? 00:00:00 smtp 8951 ? 00:00:00 smtp 8953 ? 00:00:00 smtp 8954 ? 00:00:00 smtp 8957 ? 00:00:00 smtp 8966 ? 00:00:00 smtp 8984 ? 00:00:00 bounce 8992 ? 00:00:00 bounce 9000 ? 00:00:00 bounce 9018 ? 00:00:00 bounce 9029 ? 00:00:00 bounce 9059 ? 00:00:00 bounce 9353 ? 00:00:00 apache 9374 ? 00:00:00 apache 9377 ? 00:00:00 apache 9378 ? 00:00:00 apache 9446 ? 00:00:00 apache 9467 ? 00:00:00 apache 9468 ? 00:00:00 apache 9485 ? 00:00:00 apache 9486 ? 00:00:00 apache 9487 ? 00:00:00 apache 9488 ? 00:00:00 apache 9500 ? 00:00:00 apache 9501 ? 00:00:00 apache 9502 ? 00:00:00 apache 9503 ? 00:00:00 apache 9504 ? 00:00:00 apache 9505 ? 00:00:00 apache 9506 ? 00:00:00 apache 9507 ? 00:00:00 apache 9546 ? 00:00:00 apache 9568 plus 1 ? 00:00:00 apache 9570 ? 00:00:00 apache 9589 ? 00:00:00 apache 9590 ? 00:00:00 apache 9591 ? 00:00:00 apache 9592 ? 00:00:00 apache 9607 ? 00:00:00 apache 9608 ? 00:00:00 apache 9609 ? 00:00:00 apache 9610 ? 00:00:00 apache 9611 ? 00:00:00 apache 9612 ? 00:00:00 apache 9613 ? 00:00:00 apache 9614 ? 00:00:00 apache 9773 ? 00:00:00 apache 9777 ? 00:00:00 apache 9778 ? 00:00:00 apache 9786 ? 00:00:00 apache 9787 ? 00:00:00 apache 9788 ? 00:00:00 apache 9789 ? 00:00:00 apache 9791 ? 00:00:00 pdflush 9793 ? 00:00:00 apache 9794 ? 00:00:00 apache 9795 ? 00:00:00 apache 9796 ? 00:00:00 apache 9797 ? 00:00:00 apache 9798 ? 00:00:00 apache 9799 ? 00:00:00 apache 9800 ? 00:00:00 apache 9840 ? 00:00:00 local 9851 ? 00:00:00 bounce 9857 ? 00:00:00 bounce 9858 ? 00:00:00 apache 9859 ? 00:00:00 apache 9860 ? 00:00:00 apache 9861 ? 00:00:00 apache 9862 ? 00:00:00 apache 9863 ? 00:00:00 apache 9864 ? 00:00:00 apache 9865 ? 00:00:00 apache 9866 ? 00:00:00 apache 9867 ? 00:00:00 apache 9868 ? 00:00:00 apache 9868 plus 1 ? 00:00:00 apache 9870 ? 00:00:00 apache 9871 ? 00:00:00 apache 9872 ? 00:00:00 apache 9917 ? 00:00:00 apache 9918 ? 00:00:00 apache 9919 ? 00:00:00 apache 9920 ? 00:00:00 apache 9921 ? 00:00:00 apache 9932 ? 00:00:00 apache 9933 ? 00:00:00 apache 9934 ? 00:00:00 apache 9935 ? 00:00:00 apache 9936 ? 00:00:00 apache 9937 ? 00:00:00 apache 9938 ? 00:00:00 apache 9939 ? 00:00:00 apache 9940 ? 00:00:00 apache 9941 ? 00:00:00 apache 9942 ? 00:00:00 apache 10007 ? 00:00:00 apache 10186 ? 00:00:00 apache 10418 ? 00:00:00 apache 10666 pts-1 00:00:00 ps

here is the pstree:

init---apache---272*apache Ï +-2*vlogger +-atd +-cron +-events-0---kacpid Ï +-khelper Ï +-pdflush +-events-1---aio-0 Ï +-aio-1 Ï +-kblockd-0 Ï +-kblockd-1 Ï +-pdflush Ï +-reiserfs-0 Ï +-reiserfs-1 +-6*getty +-inetd +-ircd +-khubd +-klogd +-kseriod +-ksoftirqd-0 +-ksoftirqd-1 +-kswapd0 +-master---anvil Ï +-6*bounce Ï +-3*cleanup Ï +-2*local Ï +-pickup Ï +-proxymap Ï +-qmgr Ï +-scache Ï +-26*smtp Ï +-5*smtpd Ï +-trivial-rewrite +-md0raid1 +-md1raid1 +-mdadm +-migration-0 +-migration-1 +-miniserv.pl +-mysqldsafe---mysqldsafe---mysqld +-nsrexecd---nsrexecd +-ntpd +-sshd---sshd---sshd---bash Ï +-3*sshd---sshd---sftp-server Ï +-sshd---sshd---rsync Ï +-sshd---bash---pstree +-syslogd

I am using reiserfs under software raid type raid1(mirror)

maybe the big amount of processes cause the problem. I don''t understand why apache opens so much processes that use so low CPU usage.