Super high CPU on AWS Lightsail

Hi Team,

I am getting super high CPU utilisation on a single install on an AWS Lightsail.

With 3 users on the site, the CPU spikes and we crash.

1182 www-data
1215 www-data
638 www-datal
1620 www-data
906 www-data
640 www-data
1183 www-data
1177 www-data
632 mysal
1640 www-datal
1622 www-datal
904 www-data
1174 mysal
1618 ubuntu
898 mvsal
600 root
1639 mysal
1641 musal
905 mvsal!
1176 musal
897 mvsall
1178 musal
892 musal
748 musal
1 root
PRI NI VIRT
RES
SHR S CPUS MEMS
TIME+ Command
20
0 376M 147M 81356 R 9.9 7.4 0:02.46 /us/sbin/apache2 -k star
20
0
304M 136M 71208 R
9.9 6.9
0:02.28 /usr/sbin/apache2 -k star
20
з00M
133M 71448 R
9.2
6.7
0:01.55 /usr/sbin/apache2 -k star
20
9.2
7.5
0:03.51 /usr/sbin/apache2 -k star
20
9.2 6.2
0:01.28 /usr/sbin/apache2 -k star
20
9.2 7.1 0:05.45 /usr/sbin/apache2 -k star
20
9.2
7.1 0:02.86 /usr/sbin/apache2 -k star
20
8.6
7.0
0:03.25 /usr/sbin/apache2 -k star
20
7.2
7 2
0:05.39 /usr/sbin/apache2 -k star
20
5.9 22.9
0:06.22 /usr/sbin/mvsald
20
5.3
4.0
0:00.08 /usr/sbin/apache2 -k star
20
4.6
6.8
0:00.38 /usr/sbin/apache2 -k star
20
• 340M 454M 39696 S
2.0 22.9
0:00.45 /usr/sbin/apache2 -k star
20
0 1340M 454M 39696 S
0.7 22.9
0:00.35 /usr/sbin/mysald
20
© 8208
3736 3060 R
0. 7 0.2 0:00.36 htop
20
0 1340M
454M 39696 S
0.7 22.9
0:00.43 /usr/sbin/mysald
20
244M 49392 40952 S
0.7 2.4 0:00.08 /usr/sbin/apache2 -k star
20
0 1340M
454M 39696 S
0.7 22.9 0:00.01 /usr/sbin/mysald
20
0 1340M 454M 39696 S
0.7 22.9
0:00.01 /usr/sbin/mvsald
20
0 1340M 454M 39696 S
0.0 22.9
0:00.43 /usr/sbin/mysqld
20
о 1340М 45ДМ 39696 S
0.0 22.9 0:00.34 /usr/sbin/mysald
20
о 1340М 454M 39696 S
0.0 22.9
0:00.41 /usr/sbin/mysqld
20
© 1340M 45Д 39696 S
0.0 22.9 0:00.29 /usr/sbin/mvsald
20
1здом 454M 39696 §
0.0 22.9
0:00.42 /usr/sbin/mysald
20
1340M 454M 39696 R
0.0 22.9
0:00.73 /usr/sbin/mvsald
20
0 100M 11284 8348 S
0.0
0.6
0:04.01 /sbin/init
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