cpu-usage

问题 I am running a java application on Intel(R) Xeon(R) machine which has 72 CPUs (with Hyperthreading on). Since, Microsoft groups CPUs into two groups if there are more than 64 CPUs, the java application uses only 1 group (or in other words 36 CPUs). See the snapshots below for the grouping and CPU usage details. As we can see, the java application is using 36 CPUs at capacity but not able to use other CPUs. I added +UseNUMA in JVM parameters but it did not work. Does anyone know of JVM option

问题 I'm benchmarking my server using following python code: import time initial_clock = time.clock() res = 0 for i in range(1, 10000000): res += i * i print (time.clock() - initial_clock) When I run it multiple times I get different execution times from 2.163377 seconds to 2.970836 seconds. I know same code may have different execution time due to variation in CPU load but as is said in time.clock documentation it only considers current process clocks, so it should have same execution time using

问题 I'm benchmarking my server using following python code: import time initial_clock = time.clock() res = 0 for i in range(1, 10000000): res += i * i print (time.clock() - initial_clock) When I run it multiple times I get different execution times from 2.163377 seconds to 2.970836 seconds. I know same code may have different execution time due to variation in CPU load but as is said in time.clock documentation it only considers current process clocks, so it should have same execution time using

问题 I'm benchmarking my server using following python code: import time initial_clock = time.clock() res = 0 for i in range(1, 10000000): res += i * i print (time.clock() - initial_clock) When I run it multiple times I get different execution times from 2.163377 seconds to 2.970836 seconds. I know same code may have different execution time due to variation in CPU load but as is said in time.clock documentation it only considers current process clocks, so it should have same execution time using

问题 I am using xen and with xen top I get the total CPU usage in percentage: NAME STATE CPU(sec) CPU(%) MEM(k) MEM(%) MAXMEM(k) MAXMEM(%) VCPUS NETS NETTX(k) NETRX(k) VBDS VBD_OO VBD_RD VBD_WR VBD_RSECT VBD_WSECT SSID VM1 -----r 25724 299.4 3025244 12.0 20975616 83.4 12 1 14970253 27308358 1 3 146585 92257 10835706 9976308 0 As you can see from above I see the CPU usage is 299 %, but how I can get the total CPU usage from a VM ? Top doesn't show me the total usage. 回答1: We usually see 100% cpu

问题 As part of a stress tests I'm doing I'm trying to figure out if there is an SQL query (quite specifically SQL Server query) that will max all CPUs usage to 100% or close enough. Suggestions anyone? 回答1: SELECT SUM(CONVERT(BIGINT, o1.object_id) + CONVERT(BIGINT, o2.object_id) + CONVERT(BIGINT, o3.object_id) + CONVERT(BIGINT, o4.object_id)) FROM sys.objects o1 CROSS JOIN sys.objects o2 CROSS JOIN sys.objects o3 CROSS JOIN sys.objects o4 Here's a parallel version: USE master SELECT MyInt =

问题 As part of a stress tests I'm doing I'm trying to figure out if there is an SQL query (quite specifically SQL Server query) that will max all CPUs usage to 100% or close enough. Suggestions anyone? 回答1: SELECT SUM(CONVERT(BIGINT, o1.object_id) + CONVERT(BIGINT, o2.object_id) + CONVERT(BIGINT, o3.object_id) + CONVERT(BIGINT, o4.object_id)) FROM sys.objects o1 CROSS JOIN sys.objects o2 CROSS JOIN sys.objects o3 CROSS JOIN sys.objects o4 Here's a parallel version: USE master SELECT MyInt =

问题 I want to get the CPU usage % (not processor time) of a particular process using a powershell command. Example: (Windows 8 Task Manager) I want to get that 2.9% with a command. 回答1: Here is the correct answer which is support case then you have multiple processs with same name https://stackoverflow.com/a/34844682/483997 # To get the PID of the process (this will give you the first occurrance if multiple matches) $proc_pid = (get-process "slack").Id[0] # To match the CPU usage to for example

问题 I have a question about docker stats command if anyone can help me. I am new in Docker area and I want to monitor the cpu usage of a docker container. The physical machine has 8 cores (CPU0...CPU7). I already create a container and limit its cpu resource to 1 core (CPU0) using the following command: docker run -itd --cpuset-cpus=0 -p 8081:8080 binfalse/bives-webapp I stress the container by sending requests from Jmeter and then monitor the cpu usage of the container via docker stats command

问题 I'm trying to make a sort of task manager -esque program using PerformanceMonitor and a chart. The CPU usage value is thrown onto a label and the chart, obviously, graphs it all out. Problem is PerformanceMonitor only reports the CPU being at nothing or full, but the graph shows lots of little spikes in between, usually not matching the Windows Task Manager graph output. I need to know how I can get PerformanceMonitor , or a similar C# product, to output viable, consistent, and accurate