What do you need to know about vmstat?

What do you need to know about vmstat?

Lets start with what vmstat is. vmstat (virtual memory statistics) is a system utility that collects and displays information about system memory, processes, interrupts, paging and block I/O. Using vmstat, you can specify a sampling interval to observe system activity in near-real time.

What does the final field St mean in vmstat?

The final field st represents the percentage of time a virtual CPU waits for a real CPU while the hypervisor is servicing another virtual processor. Essentially, the steal time cycle counts the amount of time that your virtual machine is ready to run but could not run due to other virtual machines competing for the CPU.

What do bi and Bo mean in vmstat?

The bi and bo fields indicate the number of blocks being read from disk and block being written to disk, as shown in the High IO Write Load example and High IO Read Load example.

What does it mean when vmstat is running in parallel?

At the same time, the vmstat executing in parallel will indicate that between 93% and 97% of the CPU time is being used for the execution of kernel code (for the generation of random numbers, in this case). In this example, many applications will be opened (including VirtualBox with a Windows guest system, among others).

vmstat (virtual memory statistics) is a valuable monitoring utility, which also provides information about block IO and CPU activity in addition to memory.

What’s the maximum number of Tera Term I can use?

Configurable maximum number is in the following: 4096 (version 4.65 or later) 256 (version 4.55 or later) 99 (version 4.24 or later) 16 (version less than 4.24) Default: MaxComPort=256 Don’t clear COM buffer when serial port opening. In the default setup, Tera Term cleaning COM buffer when serial port opening.

How does the Tera Term ( ttssh ) work?

Tera Term (ttssh) acts as a SOCKS proxy server. if is omitted, it listens at localhost. /ssh-X[[ ]: [. ]] enable X11 forwarding When the destination display is specified, the X11 connection is transferred to the display.

When does Tera Term wait for a port connection?

Tera Term waits for port connection when the serial port does not exist. This feature is enabled on the Windows XP or later. AutoComPortReconnect entry should be on. If this feature is not used, please change the WaitCom entry of the [Tera Term] section in the teraterm.ini file.