Questions tagged [statistics]
The statistics tag has no usage guidance.
80
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I need help obtaining a static IP address for my SIM card [closed]
I am currently experiencing a problem with my SIM card, supplied by KPN, which is unable to obtain a static IP address in a stable manner. Despite several attempts to configure it, the problem ...
0
votes
1
answer
31
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getting started with PDL for cluster analysis PDL::Stats::Kmeans
I guess first up is the Question " is perl data language dead ?" I'm not finding any active discussions or user q&a
sorry for not tagging this better I dont have the rep'
my problem area ...
0
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0
answers
86
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How can I get user's idle time of whole day?
How can we get the user's idle time, defined as the time during which the user hasn't struck the keyboard or even made a mouse movement in Ubuntu 22.04. It should display with the username, the user's ...
0
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0
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87
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Cumulative CPU time across reboots
How can I record and view cumulative CPU time on system across reboots? Essentially, it should be like the TIME+ column of top, but not per process. In other words, like vnstat, but for CPU time. I am ...
- 450
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1
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51
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Calculate Traffic when vnstat service stopped
How can I temporarily stop the vnstat traffic calculation?
I even stop the service, but the traffic is still calculated!
0
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1
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372
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How to get the most trusted and accurate linux distro stats?
I need the Linux distros usage statistics.
I need this data to make a more informed decision for our future technology choices.
However, I can't find the data. It seems that DistroWatch is a good ...
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0
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269
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How can I get the bit error rate (BER) for a given connection?
I would like to know the bit error rate (BER), calculated as (total good TX/RX bits)/(total good/bad TX/RX bits).
I have looked through available information from the rtnetlink library as well as the ...
- 11
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1
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162
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How to get CPU statistics PER PROCESSOR on AIX without requiring root privileges?
I want to get the per processor statistics for my AIX machines. I can use the ‘sar -P ALL 1 1’ (Documentation) command but it requires root privileges.
Is there a command that can give me PER ...
0
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1
answer
203
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Why does Network Manager report no statistics for my networks?
I'm looking through the D-Bus API for Network Manager, on Centos Stream 8, and for the entire org.freedesktop.NetworkManager.Device.Statistics interface all the properties are showing 0 including ...
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1
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30
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Monitor how long per day or hour I'm close to my maximuim internet bandwith? So if it makes sense to buy an upgrade
for quite some time I'm working at home now. Recently I questioned if my current internet connection is good enough for my activity on my laptop. For some activities I notice a high internet usage, ...
- 275
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0
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175
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Count number of bytes read() from files on a file system
I have multiple XFS filesystems mounted on my Linux 5 machine.
I'd like to know for one of them how many bytes were read() in a time period.
Is there an easy way of doing that? I've been looking ...
- 34.3k
1
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1
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2k
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How can you check how much of a bcache cache is currently in use?
I've got a setup that includes a bcache cache device serving multiple backing devices. I would like to know how much of it is currently in use because bcache only caches certain kinds of data.
- 697
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3
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211
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Extract maximum values for each objects from a file [duplicate]
I need to extract some values from a file in bash, on my CentOS system. In myfile.txt I have a list of objects called Info_region in which each object is identified with a code (eg. BARD1_region_005 ...
- 145
1
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1
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144
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Linux collect CPU time per shared library file
Is there a way to -in the background- collect cumulative cpu time stats per shared library? Without modifying applications or libraries? Ideally a solution that'll (also) work on arm (Jetson / Pi).
...
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2
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1
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782
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Best way to group & count lines on stdin?
Since time immemorial I have used ... | sort | uniq -c | sort -nr to group & count input lines, to count how many of each line there is in the input.
Is there any better way? Have I just picked up ...
- 1,286
4
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3
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1k
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live count of uniq lines
I've got a command that outputs a few different lines constantly (a stream), I'd like a live summary of the number of times each line has occurred (with a few seconds latency being acceptable).
for ...
- 278
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1
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165
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Debian version usage statistics
I'm developing a Linux application. I would like to figure out the minimum Debian release I should target depending on the version usage statistics.
There is a lot of such information for Windows and ...
- 101
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1
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162
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Bash command to count lines with matching substrings in two different positions
I'm trying to get some trivial statistics on some debug output.
Each debug line is of the form(class name)(delimiter 1)(object ID)(delimiter 2)(method name)(delimiter 3)(log message)
I want to get a ...
- 130
1
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0
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225
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How to Mirror (Sync) Specific Log Entries to a data file?
Running CentOS 7.7 in VPS
Question:
Is there native functionality to copy|duplicate|sync lines from a specific log file matching specific search criterion to a separate data file for archival ...
- 11
2
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0
answers
257
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Read per thread network statistics from C/C++
I have a Linux process with let's say 10 threads. Some of them make network traffic. From another thread or it can be even within another process I need to find out which threads have network activity....
- 141
1
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0
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88
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How to gather stats of accessed file, true http
I have a simple file/web server. On that server I have files which are accessed by myself and others, using a URL.
It is on Ubuntu 14.4 server with nginx.
I want to know how many times a file was ...
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6
votes
1
answer
4k
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Where does ethtool get information from?
When I run the command ethtool -S wlp2s0, I get the following information:
NIC statistics:
rx_packets: 63
rx_bytes: 14163
rx_duplicates: 2
rx_fragments: 58
rx_dropped: 30
...
- 219
2
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3
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3k
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How to retrieve specific cpu, memory and interface statistics only
There is requirement to collect only specific stats like %idle, memfree, available, pmemused etc. I further have to convert the output to a json string and consume it.
Is there any UNIX tool which ...
- 133
2
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1
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3k
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How to sum each column and print column name and column sum using awk?
I have a file with a table of numbers; the first line is a header line.
I want to sum each column and print out sum and column name for each column using awk.
How can I do it?
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1
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71
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How do I check how much RAM a process consumes like the way `time` is used to measure the elapsed time?
How do I check the maximum amount a RAM a process uses similar to how time works?
$ time mvn package
real 0m35.796s
user 0m32.925s
sys 0m1.559s
$ maxmem mvn package
688 MB
- 538
0
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1
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1k
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Summary statistics in shell script
I have multiple files (records) across multiple directories. Each record lies in its own path based on the date it was created.
Eg a record on 12 Nov 2016 is
~/records/2016/11/12/record.
In each ...
- 33
0
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0
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180
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measuring ppp traffic with ifstat
I've established a ppp link with 2 Linux machines. The speed is set to 9600. Traffic is going one way, i.e. from Machine 1 to Machine 2. However when I run ifstat -btwTWS -i ppp0 on Machine 2, I'm ...
- 681
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1
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2k
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How to log quantities of IP traffic by src/dst (and port for UDP & TCP)?
How can I log quantities of IP traffic by src/dst (and port for UDP & TCP)?
For each interval (probably each hour) I would like to see something like:
proto, src, dst, packets, octets
ICMP, 192....
- 971
0
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1
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1k
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Calculating the IOPS using Bandwidth
I have the write Bandwidth value received from the system and I need to calculate the write IOPS using the BW,
Bandwidth = amount of data / second
http://rickardnobel.se/storage-performance-iops-...
- 201
4
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2
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1k
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Is there a way to find out the estimate of Linux kernel version usage in the world?
Currently I am writing my bachelor thesis and as a part of it I need some statistics about the Linux kernel.
Is there any website or publication that would provide some estimates on which kernel ...
- 157
1
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1
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571
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Network I/O and Disk I/O without installing anything or using third parties libraries
I can't find anything on how can I get the network I/O and disk I/O without installing any libraries on my server.
I tried with this for the disk I/O:
cut -d" " -f 1,2,42 /proc/*/stat | sort -n -k +...
5
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3
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What does /proc/loadavg ' s "CPU and IO utilization" mean?
In this page, it says that the first three columns of the output of /proc/loadavg measure CPU and IO utilization of the last one, five, and 10 minute periods.
Does a single value reveal both CPU and ...
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1
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How to see the current routed connections?
I'm running a router that is using linux; I want to see connection statistics from internal network to external network(s) (NAT router); how do I do this? I've tried using netstat but of course its ...
user26053
1
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1
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335
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Open ZFS : Recently Used/Frequently Used statistics persistence
ZFS cache data into ARC using two information :
Recently Used Cache
Frequently Used Cache
Does ZFS keep this file/metadata statistic somewhere, or does it just do with what has been used since power ...
- 1,153
1
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1
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Network statistics: reading ifconfig rx drop count
Need to get the RX drop counter incremented in Linux ethernet interface (ifconfig RX dropped: should increment), for some statistics testing.
I am using 2 virtual PCs, with Ubuntu.
I tried the ...
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4
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1
answer
1k
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How to output process stats after completion?
I would like to run a process from bash in Cygwin so that I have some short summary after execution like peak memory usage or average CPU usage, like time but with more information.
Are there any ...
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28
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2
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81k
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How can I see memory usage history?
I am familiar with several commands like top, htop, free, etc. However, is there a command to see the peak/burst memory usage of the entire server (not individual processes) over, say, the last 30 ...
- 381
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2
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Reset vmstat statistics without rebooting
Running vmstat will give you the average virtual memory usage since last reboot. The si and so values give the average virtual memory I/O. For example:
root@mymachine# vmstat
procs -----------...
- 3,995
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1
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How to gather full network usage statistics on a freebsd router?
I have a freebsd box, which serves as a router from LAN to the outside world. It has several Internet providers, OpenVPN servers and clients, NAT and so on.
I would like to have complete statistics ...
- 3,305
2
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2
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6k
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Difference between `strace -r` and `strace -T` options?
What's the difference between the two? In the man pages it says:
-r Print a relative timestamp upon entry to each system call. This records the time difference between the beginning ...
- 51
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1
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1k
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How to install R Vennerable in Debian?
There are many threads about the topic 2014 but their proposal does not work in R 3.3.1, apparently because the dependencies are not met but I could not install them neither
install.packages("...
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How to install rgl and netmata in R 3.3.1?
I am reading the R Springer book of the authors. Their 00-installation script yields the following warings
# List of R packages
pkgs <- c("mada", "meta", "metafor", "metasens", "mvmeta", "netmeta",...
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Compute percentile and max value per variable
Bash Gurus, I need to compute the max and percentile numbers for each item in the list, using awk
aa 1
ab 3
aa 4
ac 5
aa 3
ad 2
ab 4
ac 2
ae 2
ac 5
Expected output
Item 90th percentile ...
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1
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How to plot a CDF from array using matplotlib python
I wrote a python program that basically takes a text file with 86400 lines containing web server ping responses. I extract the round trip from each line and add it to an array called roundtriptimes. I ...
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3
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12k
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Using AWK to calculate mean and variance of columns
I have a large data file dataset.csv with 7 numeric columns. I have read that AWK would be the fastest/efficient way to calculate the mean and variance for each column. I need an AWK command that goes ...
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1
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455
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Calculate average values for each day over multiple years
I have some "CSV" data (actually using ; as a delimiter)
having a row for every day from 1971-01-01 through 2099-12-31
(a span of 2099−1971=128 years). The data are organized as follows:
YEAR;MONTH;...
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3
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ksar (a sar grapher) development stopped 2013 - no RHEL 7x compatibility - any alternative? [closed]
Ksar is a BSD licensed Java based application to create graph of all
parameters from the data collected by Unix sar utilities. Usually Unix
sar is part of Unix' sysstat package and run sa1, sa2, ...
- 1,913
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1
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120
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Why do I have more packets than bytes? [closed]
I don't know how to explain this. mind blown.
ip -s link
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
link/ether RE:DA:...
- 2,458
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0
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84
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ImageMagick + ruTorrent-stats (Github repo)
I am trying to combine information I found here on the Unix & Linux Stack with I Wim Leers' rutorrent-stats
I have some experience with coding simple websites and while I am by no means a ...
- 11
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1
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28
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Since when Disks statistics in `top` command are counted?
I've got these disk statistics shown in top command:
$ top | head | tail -n1
Disks: 1095425909/52T read, 1016012571/52T written.
It's quiet high number for only 37 day uptime.
Are these numbers are ...
- 21.5k