cpu-usage

Python multiprocessing Pool map and imap

狂风中的少年 提交于 2020-03-17 12:22:08
问题 I have a multiprocessing script with pool.map that works. The problem is that not all processes take as long to finish, so some processes fall asleep because they wait until all processes are finished (same problem as in this question). Some files are finished in less than a second, others take minutes (or hours). If I understand the manual (and this post) correctly, pool.imap is not waiting for all the processes to finish, if one is done, it is providing a new file to process. When I try

How to convert a tasklist's CPU time to CPU % usage?

前提是你 提交于 2020-03-09 09:10:14
问题 I'm trying to use tasklist to find out which process is consuming more than X percent of my CPU (to later kill it with taskkill .) How do I know what percent a time format represents? The documentations says: TASKLIST options /FI filter And one filter may be: CPUTIME eq, ne, gt, lt, ge, le CPU time in the format: hh:mm:ss. hh - number of hours, mm - minutes, ss - seconds If I try tasklist /FI "CPUTIME gt 00:00:10" it works. But if I tasklist /FI "CPUTIME gt 90" it doesn't. How can I know that

How to convert a tasklist's CPU time to CPU % usage?

这一生的挚爱 提交于 2020-03-09 09:09:54
问题 I'm trying to use tasklist to find out which process is consuming more than X percent of my CPU (to later kill it with taskkill .) How do I know what percent a time format represents? The documentations says: TASKLIST options /FI filter And one filter may be: CPUTIME eq, ne, gt, lt, ge, le CPU time in the format: hh:mm:ss. hh - number of hours, mm - minutes, ss - seconds If I try tasklist /FI "CPUTIME gt 00:00:10" it works. But if I tasklist /FI "CPUTIME gt 90" it doesn't. How can I know that

how to reduce cpu usage of ffmpeg?

扶醉桌前 提交于 2020-02-27 03:54:14
问题 hi i am restreaming an hls stream as a hls stream SETLOCAL :loop ffmpeg -thread_queue_size 32768 -i "http://xx/636.m3u8" -f hls -hls_time 5 -hls_list_size 5 -hls_allow_cache 0 -hls_flags delete_segments -segment_list_flags +live -hls_base_url "../ts/" -hls_segment_filename "C:\nginx\html\ts\lig-%random%%random%-%%3d.svgz" -y "C:\nginx\html\hls\lig1.m3u8" > log.txt goto loop but it uses %15-20 of cpu i have to make 16 streams like that in same server but i can't. cant i make a configuration

how to reduce cpu usage of ffmpeg?

假如想象 提交于 2020-02-27 03:53:48
问题 hi i am restreaming an hls stream as a hls stream SETLOCAL :loop ffmpeg -thread_queue_size 32768 -i "http://xx/636.m3u8" -f hls -hls_time 5 -hls_list_size 5 -hls_allow_cache 0 -hls_flags delete_segments -segment_list_flags +live -hls_base_url "../ts/" -hls_segment_filename "C:\nginx\html\ts\lig-%random%%random%-%%3d.svgz" -y "C:\nginx\html\hls\lig1.m3u8" > log.txt goto loop but it uses %15-20 of cpu i have to make 16 streams like that in same server but i can't. cant i make a configuration

High CPU load with the JSSE client poller on Tomcat 8.5

不问归期 提交于 2020-01-24 15:32:18
问题 I'm running a Tomcat 8.5.3 on Windows Server 2008R2 and Java 1.8.0_92. The process is consuming a lot of CPU (~ 50% from 4 CPUs). JTop shows that the two most consuming threads are, by far, https-jsse-nio-443-ClientPoller-0 and https-jsse-nio-443-ClientPoller-1. The threads are mainly looping on thes four stacktraces : sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method) sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(WindowsSelectorImpl.java:296) sun.nio.ch.WindowsSelectorImpl

Does use of recursive process.nexttick let other processes or threads work?

允我心安 提交于 2020-01-22 15:15:48
问题 Technically when we execute the following code(recursive process.nexttick), the CPU usage would get to 100% or near. The question is the imagining that I'm running on a machine with one CPU and there's another process of node HTTP server working, how does it affect it? Does the thread doing recursive process.nexttick let the HTTP server work at all? If we have two threads of recursive process.nexttick, do they both get 50% share? Since I don't know any machine with one core cannot try it. And

Does use of recursive process.nexttick let other processes or threads work?

微笑、不失礼 提交于 2020-01-22 15:15:44
问题 Technically when we execute the following code(recursive process.nexttick), the CPU usage would get to 100% or near. The question is the imagining that I'm running on a machine with one CPU and there's another process of node HTTP server working, how does it affect it? Does the thread doing recursive process.nexttick let the HTTP server work at all? If we have two threads of recursive process.nexttick, do they both get 50% share? Since I don't know any machine with one core cannot try it. And

How do I find out what is hammering my SQL Server?

拜拜、爱过 提交于 2020-01-19 18:13:08
问题 My SQL Server CPU has been at around 90% for the most part of today. I am not in a position to be able to restart it due to it being in constant use. Is it possible to find out what within SQL is causing such a CPU overload? I have run SQL Profiler but so much is going on it's difficult to tell if anything in particular is causing it. I have run sp_who2 but am not sure what everything means exactly and if it is possible to identify possible problems in here. To pre-empt any "it's probably

How to get docker stats detail in java code?

丶灬走出姿态 提交于 2020-01-17 08:01:09
问题 I try to get docker container details on my java code and successfully can get it. But I need to get the CPU & memory usage of Docker container. In the terminal itself, we can check the status with docker stats . But my question is how to get the stats of Docker container in java code? 回答1: Docker CLI to make calls to Docker API. Also you can use a Java API client availible on GitHub. 回答2: A bit late for answering but it may help somebody. Considering you are running Docker engine on your