cpu-usage

问题 I want to know the memory and CPU usage in php, because I'm using cronejobs sometimes the CPU is overloaded so in this case I don't wan to start more process, I just want to skip this cron. 回答1: I think better way is get load avarage , because it depends not only on CPU, but on HDD speed also. Here is a doc: http://php.net/manual/en/function.sys-getloadavg.php 回答2: Take a look at this library http://phpsysinfo.sourceforge.net/ Demo: http://phpsysinfo.sourceforge.net/phpsysinfo/index.php?disp

问题 Docker provides an interactive stats command, docker stats [cid] which gives up to date information on the CPU usage, like so: CONTAINER CPU % MEM USAGE/LIMIT MEM % NET I/O 36e8a65d 0.03% 4.086 MiB/7.798 GiB 0.05% 281.3 MiB/288.3 MiB I'm trying to get the CPU usage as a percentage in a digestible format to do some analysis. I've seen the stats in /sys/fs which seem to provide similar values as the Docker Remote API which gives me this JSON blob: { "cpu_usage": { "usage_in_usermode":

问题 Background: In my application written in C++, I have created 3 threads: AnalysisThread (or Producer) : it reads an input file, parses it, and generates patterns, and enqueue them into std::queue 1 . PatternIdRequestThread (or Consumer) : it deque patterns from the queue, and sends them, one by one, to database through a client (written in C++), which returns pattern uid which is then assigned to the corresponding pattern. ResultPersistenceThread : it does few more things, talks to database,

问题 On my desktop, I have a little widget that tells me my current CPU usage. It also shows the usage for each of my two cores. I always wondered, how does the CPU calculate how much of its processing power is being used? Also, if the CPU is hung up doing some intense calculations, how can it (or whatever handles this activity) examine the usage, without getting hung up as well? 回答1: The CPU doesn't do the usage calculations by itself. It may have hardware features to make that task easier, but

问题 Write code in your favorite language and let Windows Task Manager represent a sine wave in CPU Usage History. This is a technical interview quiz from Microsoft China. I think it's a good question. Especially it's worth knowing how candidate understand and figure out the solution. Edit : It's a good point if may involve multi-core(cpu) cases. 回答1: A thread time slice in Windows is 40ms, iirc, so that might be a good number to use as the 100% mark. unsigned const TIME_SLICE = 40; float const PI

问题 I am using multiprocessing.Pool.imap to run many independent jobs in parallel using Python 2.7 on Windows 7. With the default settings, my total CPU usage is pegged at 100%, as measured by Windows Task Manager. This makes it impossible to do any other work while my code runs in the background. I've tried limiting the number of processes to be the number of CPUs minus 1, as described in How to limit the number of processors that Python uses: pool = Pool(processes=max(multiprocessing.cpu_count(

问题 I've noticed Android Studio (when running) uses greater than 100% CPU at all times, even when it appears there are no background processes that the IDE is running (indexing, etc). I might suspect this were something specific to my box, but some fellow developers are encountering this as well. Often times the CPU usage is in the high 100s or mid 200s (see screenshots below). Has anyone encountered this as well? If so, are there any strategies or options within the IDE to correct this intensive

问题 I would like to ask whether there is some simple way to determine cpu usage per thread in java . Thanks 回答1: I believe the JConsole (archived link) does provide this kind of information through a plugin It uses ThreadMXBean getThreadCpuTime() function. Something along the line of: long upTime = runtimeProxy.getUptime(); List<Long> threadCpuTime = new ArrayList<Long>(); for (int i = 0; i < threadIds.size(); i++) { long threadId = threadIds.get(i); if (threadId != -1) { threadCpuTime.add

问题 PerformanceCounter cpuload = new PerformanceCounter(); cpuload.CategoryName = "Processor"; cpuload.CounterName = "% Processor Time"; cpuload.InstanceName = "_Total"; Console.WriteLine(cpuload.NextValue() + "%"); The output is always 0%, while the cpuload.RawValue is like 736861484375 or so, what happened at NextValue() ? 回答1: The first iteration of he counter will always be 0, because it has nothing to compare to the last value. Try this: var cpuload = new PerformanceCounter("Processor", "%

问题 PerformanceCounter cpuload = new PerformanceCounter(); cpuload.CategoryName = "Processor"; cpuload.CounterName = "% Processor Time"; cpuload.InstanceName = "_Total"; Console.WriteLine(cpuload.NextValue() + "%"); The output is always 0%, while the cpuload.RawValue is like 736861484375 or so, what happened at NextValue() ? 回答1: The first iteration of he counter will always be 0, because it has nothing to compare to the last value. Try this: var cpuload = new PerformanceCounter("Processor", "%