Hi, I've redirected this to freebsd-stable because, as far as I can tell from reading the script, it has nothing to do with the networking code. This is strictly a scripting, and most likely process creation issue.
Your script goes through each line, creating processes on just about every third line (each call to cat | awk etc.). I'm not a shell script whiz but I can tell you that you need to reduce the number of cat | lines if you want to improve performance. As to why this is a huge issue on 4.x (hence my post to -stable) and not on -current) I do not know. Good luck, George At Thu, 7 Oct 2004 09:20:04 +0300, donatas wrote: > i've made a simple script for correcting about 2000 user files on 30 routers from > the database. > must notice that it works fine, but only on 5.2 Machines. > on 4.8 4.9 and 4.10 it "eats" all the cpu resources. On both(4.10 an 5.2.1) machines > there is similar count of IPFW rules and both FreeBsd versions run on similar > machines > (Intel SE7501WV2 Server Board +Xeon 2.4 HT enabled +512Mb RAM +Barracuda 120Gb) > > on many of those machines we are transporting internet traffic to hudge companies > and hundres of users and leaving machines with 100% cpu load for 4 hours is not a > solution. > so what might be the cause of such scripting perfomance difference between 4.10 and > 5.2.1 > > thanks for help > ________________________________TOP ON > 5.2.1____________________________________________________ > last pid: 20648; load averages: 0.49, 0.19, 0.06 > up 31+19:26:49 09:00:26 > 51 processes: 5 running, 46 sleeping > CPU states: 11.2% user, 0.0% nice, 39.8% system, 5.5% interrupt, 43.5% idle (92.7% > idle before loading the script) > Mem: 26M Active, 185M Inact, 98M Wired, 60M Buf, 185M Free > Swap: 999M Total, 999M Free > > PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU CPU COMMAND > 16653 root 111 0 940K 664K RUN 1 0:01 10.27% 4.64% sh > 38797 root 96 0 12076K 11572K select 1 67:45 0.00% 0.00% ospfd > 5706 root 8 -20 956K 664K wait 0 23:09 0.00% 0.00% sh > 38795 root 96 0 2488K 1980K select 0 20:00 0.00% 0.00% ripd > 5714 root 96 0 4072K 3752K select 0 6:18 0.00% 0.00% snmpd > 49772 root 96 0 1400K 796K select 0 1:17 0.00% 0.00% ping > 688 root 96 0 3488K 2428K select 0 0:30 0.00% 0.00% sshd > 38793 root 96 0 2972K 2460K select 0 0:23 0.00% 0.00% zebra > 706 root 8 0 1336K 1008K nanslp 0 0:09 0.00% 0.00% cron > 543 root 96 0 1312K 832K select 0 0:07 0.00% 0.00% syslogd > 26424 maris 96 0 6220K 2956K select 1 0:01 0.00% 0.00% sshd > 8568 root 96 0 4596K 3104K select 0 0:00 0.00% 0.00% mc > 26439 root 5 0 1392K 1212K ttyin 1 0:00 0.00% 0.00% bash > 8564 donatas 96 0 6220K 2956K select 0 0:00 0.00% 0.00% sshd > 9927 root 96 0 4632K 3172K select 1 0:00 0.00% 0.00% mc > 81579 root 8 0 1356K 1176K wait 0 0:00 0.00% 0.00% bash > 9008 root 5 0 1332K 1152K ttyin 0 0:00 0.00% 0.00% bash > 5211 ramas 96 0 6220K 2956K select 0 0:00 0.00% 0.00% sshd > 9959 donatas 96 0 6220K 2956K RUN 0 0:00 0.00% 0.00% sshd > 5741 root 8 0 1632K 1312K wait 0 0:00 0.00% 0.00% login > 5209 root 4 0 6228K 2836K sbwait 0 0:00 0.00% 0.00% sshd > 9957 root 4 0 6228K 2836K sbwait 0 0:00 0.00% 0.00% sshd > 8562 root 4 0 6228K 2836K sbwait 1 0:00 0.00% 0.00% sshd > 26422 root 4 0 6228K 2836K sbwait 0 0:00 0.00% 0.00% sshd > 8570 root 8 0 1352K 1172K wait 0 0:00 0.00% 0.00% bash > 9929 root 8 0 1356K 1176K wait 0 0:00 0.00% 0.00% bash > 9962 root 8 0 1388K 1208K wait 1 0:00 0.00% 0.00% bash > 18236 root 96 0 2284K 1540K CPU0 0 0:00 0.00% 0.00% top > 5226 root 5 0 1356K 1176K ttyin 0 0:00 0.00% 0.00% bash > 26426 maris 8 0 1636K 1300K wait 1 0:00 0.00% 0.00% su > 5225 ramas 8 0 1636K 1300K wait 0 0:00 0.00% 0.00% su > 8566 donatas 8 0 1636K 1300K wait 0 0:00 0.00% 0.00% su > 9961 donatas 8 0 1636K 1300K wait 0 0:00 0.00% 0.00% su > 9960 donatas 8 0 1328K 1148K wait 0 0:00 0.00% 0.00% bash > 8565 donatas 8 0 1328K 1148K wait 1 0:00 0.00% 0.00% bash > 26425 maris 8 0 1328K 1148K wait 0 0:00 0.00% 0.00% bash > 5212 ramas 8 0 1328K 1148K wait 0 0:00 0.00% 0.00% bash > 8567 root 8 0 1388K 1208K wait 0 0:00 0.00% 0.00% bash > 5748 root 5 0 1276K 860K ttyin 0 0:00 0.00% 0.00% getty > 5746 root 5 0 1276K 860K ttyin 1 0:00 0.00% 0.00% getty > 5742 root 5 0 1276K 860K ttyin 1 0:00 0.00% 0.00% getty > 5747 root 5 0 1276K 860K ttyin 1 0:00 0.00% 0.00% getty > 5743 root 5 0 1276K 860K ttyin 1 0:00 0.00% 0.00% getty > 5744 root 5 0 1276K 860K ttyin 1 0:00 0.00% 0.00% getty > 5745 root 5 0 1276K 860K ttyin 1 0:00 0.00% 0.00% getty > 20648 root 111 0 1396K 860K RUN 0 0:00 0.00% 0.00% grep > 16650 root 8 0 916K 640K wait 0 0:00 0.00% 0.00% sh > 16652 root -8 0 1204K 636K pipdwt 0 0:00 0.00% 0.00% cat > _______________________________TOP ON > 4.10_____________________________________________________ > last pid: 42087; load averages: 0.36, 0.08, 0.03 > up 79+23:40:33 09:02:26 > 45 processes: 4 running, 41 sleeping > CPU states: 24.3% user, 0.0% nice, 71.2% system, 4.5% interrupt, 0.0% idle (97% > idle before loading the script) > Mem: 28M Active, 292M Inact, 84M Wired, 36K Cache, 60M Buf, 94M Free > Swap: 1008M Total, 1008M Free > > PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND > 31947 root 10 0 680K 472K wait 0:02 11.65% 4.93% sh > 17018 root 2 0 14148K 13736K select 642:54 0.10% 0.10% ospfd > 1811 root 2 0 3788K 3040K select 75:25 0.00% 0.00% snmpd > 24055 root 10 -20 684K 472K wait 37:40 0.00% 0.00% sh > 89 root 2 0 2596K 1960K select 1:25 0.00% 0.00% sshd > 17014 root 2 0 2612K 2188K select 1:20 0.00% 0.00% zebra > 80 root 2 0 988K 716K select 0:16 0.00% 0.00% syslogd > 87 root 10 0 1028K 776K nanslp 0:13 0.00% 0.00% cron > 17016 root 2 0 2028K 1608K select 0:10 0.00% 0.00% ripd > 80454 maris 2 0 5296K 2316K select 0:00 0.00% 0.00% sshd > 71392 root 2 0 4340K 2884K select 0:00 0.00% 0.00% mc > 31859 root 28 0 1984K 1276K RUN 0:00 0.00% 0.00% top > 31487 root 2 0 4144K 2736K select 0:00 0.00% 0.00% mc > 16872 root 3 0 1800K 1536K ttyin 0:00 0.00% 0.00% bash > 80518 root 10 0 1832K 1576K wait 0:00 0.00% 0.00% bash > 71393 root 3 0 1828K 1584K ttyin 0:00 0.00% 0.00% bash > 80452 root 2 0 5296K 2260K sbwait 0:00 0.00% 0.00% sshd > 31577 root 2 0 5296K 2260K sbwait 0:00 0.00% 0.00% sshd > 23959 root 2 0 5296K 2196K sbwait 0:00 0.00% 0.00% sshd > 31447 root 2 0 5296K 2260K sbwait 0:00 0.00% 0.00% sshd > 31449 donatas 2 0 5296K 2316K select 0:00 0.00% 0.00% sshd > 1814 root 10 0 1272K 984K wait 0:00 0.00% 0.00% login > 31488 root 10 0 1812K 1568K wait 0:00 0.00% 0.00% bash > 31452 root 10 0 1828K 1572K wait 0:00 0.00% 0.00% bash > 31582 root 10 0 1828K 1572K wait 0:00 0.00% 0.00% bash > 23988 root 3 0 1816K 1560K ttyin 0:00 0.00% 0.00% bash > 31579 donatas 28 0 5296K 2320K RUN 0:00 0.00% 0.00% sshd > 23961 ramas 2 0 5296K 2256K select 0:00 0.00% 0.00% sshd > 80455 maris 10 0 1792K 1532K wait 0:00 0.00% 0.00% bash > 31450 donatas 10 0 1792K 1532K wait 0:00 0.00% 0.00% bash > 31580 donatas 10 0 1792K 1532K wait 0:00 0.00% 0.00% bash > 23962 ramas 10 0 1772K 1512K wait 0:00 0.00% 0.00% bash > 1821 root 3 0 956K 660K ttyin 0:00 0.00% 0.00% getty > 1817 root 3 0 956K 660K ttyin 0:00 0.00% 0.00% getty > 1818 root 3 0 956K 660K ttyin 0:00 0.00% 0.00% getty > 1820 root 3 0 956K 660K ttyin 0:00 0.00% 0.00% getty > 1816 root 3 0 956K 660K ttyin 0:00 0.00% 0.00% getty > 1819 root 3 0 956K 660K ttyin 0:00 0.00% 0.00% getty > 1815 root 3 0 956K 660K ttyin 0:00 0.00% 0.00% getty > 31944 root 10 0 636K 440K wait 0:00 0.00% 0.00% sh > 31946 root -6 0 224K 112K pipdwt 0:00 0.00% 0.00% cat > 40692 root 10 -20 180K 64K nanslp 0:00 0.00% 0.00% sleep > 27 root 18 0 212K 88K pause 0:00 0.00% 0.00% adjkerntz > 42086 root 43 0 680K 472K RUN 0:00 0.00% 0.00% sh > 42087 root 43 0 680K 472K RUN 0:00 0.00% 0.00% sh > _____________________________________________________________________________________________ > also testen on 4.8, 4.9 versions - results similar to 4.10 results. > _____________________________________________________________________________________________ > > > Donatas Gendvilas > > > Duomenų Perdavimo Departamentas > > Valdymo Centras > > Lithuania > > > > > > > [2 script.sh <application/octet-stream (quoted-printable)>] > > [3 <text/plain; us-ascii (7bit)>] > _______________________________________________ > [EMAIL PROTECTED] mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "[EMAIL PROTECTED]" _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"