A detailed explanation of top

Source: Internet
Author: User

top-04:47:47 up Wuyi min, 1 user, Load average:0.00, 0.00, 0.00
tasks:67 Total, 1 running, sleeping, 0 stopped, 0 zombie
Cpu (s): 6.7%us, 0.3%sy, 0.0%ni, 99.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.
mem:494224k Total, 107380k used, 386844k free, 15540k buffers
swap:2031608k Total, 0k used, 2031608k free, 35064k cached

First line:
04:47:47 Current system time
1 users currently have 1 user login systems
The three numbers behind the load average:0.00,0.00,0.00 load average are 1-minute, 5-minute, 15-minute loads respectively.

The load average data is the number of active processes that are checked every 5 seconds and then calculated by a particular algorithm. If this number is divided by the number of logical CPUs, the result above 5 indicates that the system is overloaded.
Second line:
Tasks task (process), the system now has a total of 67 processes, of which there are 1 in the running, 66 in hibernation (sleep), 0 in the stoped state, and 0 in the zombie State (zombie).
Third line: CPU status
6.7% the percentage of CPU occupied by US user space.
0.3% Sy Core Space consumes a percentage of the CPU.
0.0% NI changes the priority of the process to occupy a percentage of the CPU
99.7% ID Idle CPU percent
0.0% wa io waiting for CPU percentage
0.0% Hi Hard Interrupt (Hardware IRQ)% of CPU occupied
0.0% si soft interrupt (software interrupts)% of CPU occupied

Line four: Memory status
494224k Total Physical Memory (494M)
107380k used total memory in use (107M)
386844k free Memory Total (386M)
15540k Buffers Cache Memory (15M)

Line five: Swap swap partition
2031608k Total swap area (2GB)
Total swap area used by 0k used (0M)
2031608k Free Swap Area total (2GB)
35064k cached buffer Swap area total (35M)

This article is from the "19941212" blog, please be sure to keep this source http://19941212.blog.51cto.com/11630936/1865077

A detailed explanation of top

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