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cpu-usage

Constant SQL Server 80% CPU Utilization

We have a small (for now) Asp.Net MVC 5 website on a dedicated VPS. When I go to the server and fire-up task manager, I see that "SQL Server Windows NT - 64 bit" is using around 80% of CPU and 170MB of RAM and IIS is using 6% CPU and 400MB of RAM. Server Specs are: CPU 1.90Ghz dual core Memory 2GB Windows Server 2012 SQL Server Express 2012 Disk Space: 25GB, 2.35 Free. The database is not very big. Its backup is less than 10MB. I have tried to optimize the website as much as I could. I added caching to a lot of controllers and implemented donut caching for quite a lot of controllers. But today

2021-06-15 13:49:44    分类:问答    asp.net   performance   sql-server-2012   cpu-usage   sql-server-performance

Count metrics with JMH

How can I use to calculate the amount of CPU time and memory in JMH? For example, I have: Code: @State(Scope.Thread) @BenchmarkMode(Mode.All) public class JMHSample_My { int x = 1; int y = 2; @GenerateMicroBenchmark public int measureAdd() { return (x + y); } @GenerateMicroBenchmark public int measureMul() { return (x * y); } public static void main(String[] args) throws RunnerException { Options opt = new OptionsBuilder() .include(".*" + JMHSample_My.class.getSimpleName() + ".*") .warmupIterations(5) .measurementIterations(5) .forks(1) .build(); new Runner(opt).run(); } } Result: Benchmark

2021-06-14 23:54:58    分类:问答    java   benchmarking   cpu-usage   jmh

psutil: Measuring the cpu usage of a specific process

Im trying to measure the cpu usage of a process tree. Currently getting the cpu_usage of a process (without children) will do, but I'm getting weird results. import psutil p = psutil.Process(PID) p.cpu_percent gives me back float>100, how is that even possible? btw PID is the pid of something simple as def foo(): i = 0 while True: i += 1 which according to task manager its cpu usage is around 12% I want to get an output of 12.5 or something like that.

2021-06-14 22:23:55    分类:问答    python   cpu-usage   psutil

How can I get the CPU usage of a process with “tasklist” in Windows

I am writing a program in Java to periodically display the CPU and memory usage of a given process ID. My implementation invokes tasklist. It is pretty straightforward to get the memory usage by the following command: tasklist /fi "memusage ge 0" /fi "pid eq 2076" /v This will return the memory usage of process id 2076 and i can use this for my task. By invoking the following command, I can extract the CPU Time. tasklist /fi "pid eq 2076" /fi "CPUTIME ge 00:00:00" /v My question is, how would I go about getting the CPU usage of this process? I found a post on StackOverflow for my question but

2021-06-13 19:33:34    分类:问答    java   windows   command-line   process   cpu-usage

Measuring CPU time in c++

If I had the following code clock_t t; t = clock(); //algorithm t = clock() - t; t would equal the number of ticks to run the program. Is this the same is CPU time? Are there any other ways to measure CPU time in C++? OS -- Debian GNU/Linux I am open to anything that will work. I am wanting to compare the CPU time of two algorithms.

2021-06-13 18:02:44    分类:问答    c++   time   runtime   cpu-usage   cpu-time

Firefox plugin CPU usage

I need to collect data on firefox CPU usage during web-development coding session and I'm wondering if it is possible to monitor CPU usage of particular firefox plugin. Right now i'm using windows' perfmon.msc, but it will only allow me to monitor firefox process as a whole. Do you know any tools that would allow me to get CPU data from a plugin? Is it possible at all ?

2021-06-13 15:36:57    分类:问答    firefox   plugins   cpu-usage

how to analyze Query CPU time

How can I analyze the CPU time consumed by my Innodb queries? I have innotop, but I cant seems to find where it is. Thanks.

2021-06-12 18:19:00    分类:问答    mysql   innodb   cpu-usage

将 Docker 容器限制为单个 CPU 内核(Limiting a Docker Container to a single cpu core)

问题 我正在尝试构建一个在一致条件下运行代码段的系统,我认为这是可能的一种方法是在具有相同布局的 docker 容器中运行各种程序,保留相同数量的内存等。但是,我似乎无法弄清楚如何保持 CPU 使用率一致。 我似乎能找到的最接近的东西是“cpu 共享”,如果我理解文档,它会根据系统上正在运行的其他容器/其他进程以及系统上可用的内容来限制 cpu 的使用。 它们似乎无法将容器限制为 CPU 使用的绝对数量。 理想情况下,我想设置仅限于使用单个 CPU 内核的 docker 容器。 这是可能吗? 回答1 如果您使用的码头工人的一个更新版本,您可以使用--cpuset-cpus=""在docker run到指定要分配CPU内核: docker run --cpuset-cpus="0" [...] 如果您使用旧版本的 Docker (< 0.9),它使用 LXC 作为默认执行环境,您可以使用--lxc-conf来配置分配的 CPU 内核: docker run --lxc-conf="lxc.cgroup.cpuset.cpus = 0" [...] 在这两种情况下,只有第一个 CPU 内核可用于 docker 容器。 这两个选项都记录在 docker 帮助中。 回答2 我试图提供一个关于容器资源分配的教程。 https://gist.github.com/afolarin

2021-06-12 14:26:36    分类:技术分享    docker   cpu-usage

锁定 android 上的 CPU 以进行应用程序性能测试(Locking the CPU on android for app performance testing)

问题 我正在尝试在不同 CPU 状态下测试应用程序在 android 上的性能。 所以我想将 CPU 锁定在 1000Mhz 并读取读数,然后使 CPU 过载并读取读数。 我的问题是:无论如何以特定的锁定/冻结率锁定 CPU 和可能的 RAM 吗? 任何有关此文档的链接都将受到高度赞赏。 回答1 按照以下步骤(所有步骤都具有 root 权限): 1. stop mpdecision 2.在/sys/devices/system/cpu可以看到你的设备有多少核,如果是双核,你会看到cpu0和cpu1两个文件夹。 3. 写入0或1以禁用或启用内核 echo "0" > /sys/devices/system/cpu/cpu1/online # disable core echo "1" > /sys/devices/system/cpu/cpu1/online # enable core 4.更改CPU调速器 echo "userspace" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor 5.设定频率 echo "1000000" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed 记得检查/sys/devices/system/cpu/cpu0/cpufreq

2021-06-12 13:55:53    分类:技术分享    android   performance   cpu-usage   android-testing   cpu-speed

How can I monitor memory and CPU usage by spark application?

After running my spark application, I want to monitor its memory and cpu usage to evaluate its performance but couldn't find any option. Is it possible to monitor it? How can I monitor memory and CPU usage by spark application?

2021-06-12 12:54:15    分类:问答    apache-spark   memory-management   cpu-usage