cpu

问题 On Windows, GetProcessTimes() and QueryProcessCycleTime() can be used to get totals for all threads of an app. I expected (apparently naively) to find a proportional relationship between the total number of cycles and the total processor time (user + kernel). When converted to the same units (seconds) and expressed at a percent of the app's running time, they're not even close; and the ratio between them varies greatly. Right after an app starts, they're fairly close. 3.6353% CPU cycles 5

问题 i7-4600U datasheet says that SA_DQ[63:0] is used for memory channel A. And SB_DQ[63:0] is used for memory channel B. So my understanding is that memory channel A and memory channel B use different processor pins for each own's data bus. Is my understanding correct? 回答1: The presence of the of SA_DQ[63:0] and SB_DQ[63:0] pretty much says it all. The are two physical channels. If you still need a secondary "prof", you can also check the math of this statement in the datasheet Theoretical

问题 i7-4600U datasheet says that SA_DQ[63:0] is used for memory channel A. And SB_DQ[63:0] is used for memory channel B. So my understanding is that memory channel A and memory channel B use different processor pins for each own's data bus. Is my understanding correct? 回答1: The presence of the of SA_DQ[63:0] and SB_DQ[63:0] pretty much says it all. The are two physical channels. If you still need a secondary "prof", you can also check the math of this statement in the datasheet Theoretical

问题 I am looking for a script/process to check the amount of CPU (in terms of percentage) each query consumes at any point of time in my oracle database. My Oracle version is : 12.1.0.2 Database is hosted on Exadata X7_2 It is a shared server, and many databases also running on the same server. SELECT AVG(value/vp.cpu_count) FROM v$sysmetric_history,(SELECT value cpu_count FROM v$parameter WHERE name LIKE 'cpu_count') vp WHERE metric_name = 'CPU Usage Per Sec' AND group_id = 2 AND end_time >

问题 We have a cluster where nodes are out of resources leading to slowness and over-committing issues. This is forcing us to restart the nodes frequently. We are planning to enforce a node allocatable resource policy to split the available CPU, Memory and Ephemeral Storage between system, kubelet, and application pods. Came across some guidelines on allocatable resource calculation here. It does not specify how much is the split between system and kubelet resources. Also, we are on open shift and

问题 How can I get CPU serial number under Linux (Ubuntu) without root permissions? I tried cpuid command, it works without root permissions, but appears to return all zeros (I believe because something needs to be changed in BIOS). Can you please suggest me another way to retrieve CPU serial from a program without root permissions and without having to modify BIOS? 回答1: Root permissions required. The answer is dmidecode. If you need CPU ID: dmidecode | grep -w ID | sed "s/^.ID\: //g" This will

问题 R version: 3.2.4 RStudio version: 0.99.893 Windows 7 Intel i7 480 GB RAM str(df) 161976 obs. of 11 variables I am a relative novice to R and do not have a software programming background. My task is to perform clustering on a data set. The variables have been scaled and centered. I am using the following code to find the optimal number of clusters: d <- dist(df, method = "euclidean") library(cluster) pamk.best <- pamk(d) plot(pam(d, pamk.best$nc)) I have noticed that the system never uses

问题 Hey I'm learning psutil package and I want to know how to display current CPU usage when function is in progress? I suppose I need some threading or something like this, but how to do it? Thank u for any answers. import psutil import random def iHateThis(): tab = [] for i in range(100000): tab.append(random.randint(1, 10000)) tab.sort() return tab; while(True): currentProcess = psutil.Process() print(currentProcess.cpu_percent(interval=1)) 回答1: You can use threading to run iHateThis or to run

问题 When I read about MIPS architecture, I came across shadow registers which are said to be copies of general purpose registers. I couldn't understand the following: When are shadow registers used? 回答1: MIPS shadow registers are used to reduce register load/store overhead in handling interrupts. An interrupt to which a shadow register set is assigned does not need to save any of the existing context to provide free registers or load any interrupt-specific data stored in the shadow registers at

问题 When I read about MIPS architecture, I came across shadow registers which are said to be copies of general purpose registers. I couldn't understand the following: When are shadow registers used? 回答1: MIPS shadow registers are used to reduce register load/store overhead in handling interrupts. An interrupt to which a shadow register set is assigned does not need to save any of the existing context to provide free registers or load any interrupt-specific data stored in the shadow registers at