编辑：

Question 1

每个进程的交换使用量

#!/bin/bash
set -o posix
set -u
SUM=0
OVERALL=0
for DIR in `find /proc/ -maxdepth 1 -type d -regex "^/proc/[0-9]+"` ; do
PID=`echo $DIR | cut -d / -f 3`
PROGNAME=`ps -p $PID -o comm --no-headers`
for SWAP in `grep Swap $DIR/smaps 2>/dev/null| awk '{ print $2 }'`
do
let SUM=$SUM+$SWAP
done
echo "PID=$PID - Swap used: $SUM - ($PROGNAME )"
let OVERALL=$OVERALL+$SUM
SUM=0
done
echo "Overall swap used: $OVERALL"

Answer

每个进程的交换使用量

#!/bin/bash
set -o posix
set -u
SUM=0
OVERALL=0
for DIR in `find /proc/ -maxdepth 1 -type d -regex "^/proc/[0-9]+"` ; do
PID=`echo $DIR | cut -d / -f 3`
PROGNAME=`ps -p $PID -o comm --no-headers`
for SWAP in `grep Swap $DIR/smaps 2>/dev/null| awk '{ print $2 }'`
do
let SUM=$SUM+$SWAP
done
echo "PID=$PID - Swap used: $SUM - ($PROGNAME )"
let OVERALL=$OVERALL+$SUM
SUM=0
done
echo "Overall swap used: $OVERALL"

Question 2

问题解决了：

我发现有 1372500 页共享内存被交换。页面大小为 4096 字节。

# ipcs -mu

------ Shared Memory Status --------
segments allocated 32
pages allocated 2752532
pages resident  1380020
pages swapped   1372500
Swap performance: 0 attempts     0 successes

# getconf PAGESIZE
4096

# echo "$((1372500*4096/1024/1024)) MB"
5361 MB

Answer

问题解决了：

我发现有 1372500 页共享内存被交换。页面大小为 4096 字节。

# ipcs -mu

------ Shared Memory Status --------
segments allocated 32
pages allocated 2752532
pages resident  1380020
pages swapped   1372500
Swap performance: 0 attempts     0 successes

# getconf PAGESIZE
4096

# echo "$((1372500*4096/1024/1024)) MB"
5361 MB

Question 3

Linux 将不经常访问的内存移至交换区；此时您是否有可用内存并不重要，请参阅 askubuntu 上类似问题的答案：https://askubuntu.com/a/159358

Answer

Linux 将不经常访问的内存移至交换区；此时您是否有可用内存并不重要，请参阅 askubuntu 上类似问题的答案：https://askubuntu.com/a/159358

Question 4

我使用这个 bash 来查看交换-for file in /proc/*/status ; do awk '/VmSwap|Name/{printf $2 " " $3}END{ print ""}' $file; done | sort -k 2 -n -r | less

Answer

我使用这个 bash 来查看交换-for file in /proc/*/status ; do awk '/VmSwap|Name/{printf $2 " " $3}END{ print ""}' $file; done | sort -k 2 -n -r | less

编辑：

编辑：

答案1

答案2

问题解决了：

答案3

答案4

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