查看指定进程swap使用情况
# cat /proc/3315/smaps | grep Swap | more
Swap: 0 kB
SwapPss: 0 kB
Swap: 4 kB
SwapPss: 4 kB
编写脚本getswap.sh，查看所有进程的swap，并排序
echo -e "pid\tswap\tproc_name"
for pid in $(ls -l /proc | grep ^d | awk '{ print $9 }'| grep -v [^0-9]); do
# 判断改进程是否占用了swap
grep -q "Swap" /proc/$pid/smaps 2>/dev/null
if [ $? -eq 0 ];then
# 如果占用了swap
swap=$(grep Swap /proc/$pid/smaps | gawk '{ sum+=$2;} END { print sum }')
proc_name=$(ps aux | grep -w "$pid" | grep -v grep | awk '{ for(i=11;i<=NF;i++){ printf("%s ",$i); }}')
if [ $swap -gt 0 ];then
# 输出swap信息
echo -e "$pid\t${swap} KB\t$proc_name"
fi
fi
done | sort -k2 -n
查看结果
# sh getswap.sh
pid swap proc_name
1019 8 KB /usr/bin/VGAuthService -s
27855 8 KB sshd: root@pts/1
27979 48 KB sshd: root@notty
1026 224 KB /usr/sbin/NetworkManager --no-daemon
1259 236 KB (sd-pam)
3315 280 KB /usr/sbin/sshd -D -oCiphers=aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes256-ctr,aes256-cbc,aes128-gcm@openssh.com,aes128-ctr,aes128-cbc -oMACs=hmac-sha2-256-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha1,umac-128@openssh.com,hmac-sha2-512 -oGSSAPIKexAlgorithms=gss-gex-sha1-,gss-group14-sha1- -oKexAlgorithms=curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1 -oHostKeyAlgorithms=rsa-sha2-256,rsa-sha2-256-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384,ecdsa-sha2-nistp384-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-512-cert-v01@openssh.com,ecdsa-sha2-nistp521,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519,ssh-ed25519-cert-v01@openssh.com,ssh-rsa,ssh-rsa-cert-v01@openssh.com -oPubkeyAcceptedKeyTypes=rsa-sha2-256,rsa-sha2-256-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384,ecdsa-sha2-nistp384-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-512-cert-v01@openssh.com,ecdsa-sha2-nistp521,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519,ssh-ed25519-cert-v01@openssh.com,ssh-rsa,ssh-rsa-cert-v01@openssh.com -oCASignatureAlgorithms=rsa-sha2-256,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,rsa-sha2-512,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa
1042 1160 KB /usr/libexec/platform-python -Es /usr/sbin/tuned -l -P
3322 6108 KB /usr/sbin/rsyslogd -n
773 6108 KB /usr/lib/systemd/systemd-journald
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