ABOUT process accounting Process accounting is a security method in which an administrator may keep track of system resources used and their allocation among users, provide for system monitoring, and minimally track a user’s commands. Process accounting has both positive and negative points. SPECIFIC EXPLANATION [text] acct: highwater lowwater frequency If BSD-style process accounting is …
Tag Archives: proc
hung_task_timeout_secs( topic related to linux kernel hangup )
ABOUT hung_task_timeout_secs if a task(process) is hung then hung_task_timeout_secs value decides if the hung task needs no reboot or reboot after n seconds LINUX KERNEL RELATED PARAMETER$cat /proc/sys/kernel/hung_task_timeout_secs120$ $echo 0 | sudo tee –append /proc/sys/kernel/ hung_task_timeout_secs0$sudo cat /proc/sys/kernel/hung_task_timeout_secs0$ When a task in D state did not get scheduled for more thanthis value report a warning.This …
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skill, snice – send a signal or report process status
A UNIX Command $skill Usage: skill [signal to send] [options] process selection criteria Example: skill -KILL -v pts/* The default signal is TERM. Use -l or -L to list available signals. Particularly useful signals include HUP, INT, KILL, STOP, CONT, and 0. Alternate signals may be specified in three ways: -SIGKILL -KILL -9 General options: …
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proc asound devices 0.2
$cat /proc/asound/devices 2: : timer 3: : sequencer 4: [ 0- 2]: digital audio capture 5: [ 0- 1]: digital audio playback 6: [ 0- 1]: digital audio capture 7: [ 0- 0]: digital audio playback 8: [ 0- 0]: digital audio capture 9: [ 0- 0]: hardware dependent 10: [ 0] : control $ …
proc filesystem with alsa.
$cat /proc/asound/cards 0 [NVidia ]: HDA-Intel – HDA NVidia HDA NVidia at 0xf5000000 irq 22 $ The HD-audio component consists of two parts: the controller chip and the codec chips on the HD-audio Linux provides a single driver for all controllers, snd-hda-intel. Although the driver name contains a word of a well-known hardware vendor, it’s …
acpi with proc
AC Adapter in Proc Filesystem Alternating current (AC) adapters are used to power or charge many common electronic devices, such as mobile phones, laptop computers, or external hard drives. An AC adapter changes AC power from an electrical outlet into the type of power or voltage that an electronic device needs to work. Typically, each …
when RTO retransmissions remain unacknowledged…
$cat /proc/sys/net/ipv4/tcp_orphan_retries 0 $ tcp_orphan_retries – INTEGER This value influences the timeout of a locally closed TCP connection, when RTO retransmissions remain unacknowledged. See tcp_retries2 for more details. The default value is 7 If your machine is a loaded WEB server, you should think about lowering this value, such sockets may consume significant resources. Cf. …
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