how to find out what it is waiting for
When looking at the process with "ps ax" the stat column is "Dl" which means "uninterruptible sleep (usually IO)". Is it possible to find out more details on what the process is
Communication power supply design based on PFC and LLC
In order to meet the high power and high stability requirements of communication base stations for power supply, this paper designs a dedicated 500W switch power supply for communication base
A Beginner''s Guide to Understanding Telecom Power Supply Systems
Understand telecom power supply systems, their components, and their role in ensuring uninterrupted communication and reliable network operations.
How can I put process into "uninterruptible sleep"?
I''m noticed that process that dumping a core is in uninterruptible sleep, so it can''t be killed with SIGKILL, but when I''m trying to emulate this behavior using pipe commands that receives coredump I can
Power Management in Telecommunications
Power control systems in telecommunications oversee the distribution and management of electrical power across the network, ensuring that all important components receive a consistent and
Why there is a state called ''TASK_UNINTERRUPTIBLE'' in Linux
As you could read from that answer, setting the current process state to TASK_UNINTERRUPTIBLE is needed for make schedule() call, performed by that thread, to put the
Comparison of Power Consumption Models for 5G Cellular
Power consumption models for base stations are briefly discussed as part of the development of a model for life cycle assessment.
understand perfetto Uninterruptible Sleep
Uninterruptible Sleep usually caused by I/O, sometime it''s caused by I/O trashing because of low memory. Only by looking your perfetto trace can figure it out.
Communications System Power Supply Designs
Voice-over-Internet-Protocol (VoIP), Digital Subscriber Line (DSL), and Third-generation (3G) base stations all necessitate varying degrees of complexity in power supply design. We discuss factors
How to stop ''uninterruptible'' process on Linux?
I have a VirtualBox process hanging around which I tried to kill (KILL/ABORT) but without success. The parent pid is 1 (init). top shows the process as D which is documented as "uninterruptible sl...
Algorithms for uninterrupted power supply to mobile
In this article, an algorithm for automatic control of energy sources was developed to improve the uninterrupted power supply of mobile communication base stations. Based on the proposed
Power consumption analysis of access network in 5G mobile communication
The network power efficiency with the consideration of propagation environment and network constraints is investigated to identify the energy-efficient architecture for the 5G mobile
ANALYSIS OF METHODS OF PROVIDING UNINTERRUPTED POWER
In this work, an analysis of methods for providing mobile communication base stations with uninterrupted power supply was conducted. As a result of the analysis, the shortcomings and
Does read/write blocked system call put the process in TASK
The Uninterruptible state is mostly used by device drivers waiting for disk or network I/O. When the process is sleeping uninterruptibly, signals accumulated during the sleep are noticed when
Eaton UPS fundamentals handbook
Generally used to provide power redundancy to equipment with a single power supply, the eATS automatically transfers power between sources with no interruption if the primary source fails or
Linux Process States
A process performing I/O will be put in D state (uninterruptable sleep), which frees the CPU until there is a hardware interrupt which tells the CPU to return to executing the program. See
Why doing I/O in Linux is uninterruptible?
In short, making I/O uninterruptible is for the purpose of making the I/O task finish ASAP, without being interfered by signals. Some related knowledge that I gained from the book: The word
How to stop uninterruptible threads in Java
How to stop uninterruptible threads in Java Asked 15 years, 1 month ago Modified 12 years, 11 months ago Viewed 5k times
Industrial Network Uninterruptible Power Supply (UPS)
ET Industrial Network Uninterruptible Power Supply (UPS) SPECIFICATIONS The Uninterruptible Power Supply (UPS) shall be powered by 24VDC (nominal) input and provide 24VDC (nominal)