如何在Solaris上检查进程内存使用情况

该示例代码将展示如何使用pmap命令在Solaris上检查进程内存使用情况。需要通过计算和汇总物理和虚拟内存，来确定哪些内存是被使用的和未使用的，以便进行调试和优化。

#!/bin/sh
# Define process name
PROCESS_NAME="my_process"

# Get the process id
PID=`pgrep ${PROCESS_NAME}`

# Initialize counters
TOTAL_PHYSICAL_MEM=0
TOTAL_VIRT_MEM=0

# Loop through each memory segment in the process
for ADDRESS in `pmap -x ${PID} | awk '{print $1}' | grep -v ^Address`; do
        # Extract the memory sizes in bytes
        PHYSICAL_MEM_HEX=`pmap -x ${PID} | grep "${ADDRESS}" | awk '{print $4}'`
        VIRT_MEM_HEX=`pmap -x ${PID} | grep "${ADDRESS}" | awk '{print $5}'`

        # Convert to decimal
        PHYSICAL_MEM=$((${PHYSICAL_MEM_HEX}))
        VIRT_MEM=$((${VIRT_MEM_HEX}))

        # Accumulate the memory sizes
        TOTAL_PHYSICAL_MEM=$((${TOTAL_PHYSICAL_MEM} + ${PHYSICAL_MEM}))
        TOTAL_VIRT_MEM=$((${TOTAL_VIRT_MEM} + ${VIRT_MEM}))
done

# Print the results
echo "Physical Memory: ${TOTAL_PHYSICAL_MEM} bytes"
echo "Virtual Memory: ${TOTAL_VIRT_MEM} bytes"

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