qstats | Quick and dirty statistics tool for the UNIX pipeline | Analytics library

by tonyfischetti C Version: v1.0 License: MIT

X-Ray Key Features Code Snippets(2)Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | qstats Summary

qstats is a C library typically used in Analytics applications. qstats has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

I'm a big fan of using Unix tools in my data analysis workflow. The only thing I seemed to be missing were a few simple tools for computing descriptive statistics from the command-line. A found myself redirecting output to a file and then starting R just to retrieve simple summary stats. So, I started this project to make a small command-line executable to include in a Unix shell pipeline to help me and any other data analysts out!.

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Quality

Security

License

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Support

qstats has a low active ecosystem.

It has 57 star(s) with 4 fork(s). There are 5 watchers for this library.

It had no major release in the last 12 months.

There are 1 open issues and 5 have been closed. On average issues are closed in 778 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of qstats is v1.0

Quality

qstats has no bugs reported.

Security

qstats has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

qstats is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

qstats releases are available to install and integrate.

Installation instructions, examples and code snippets are available.

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qstats Key Features

No Key Features are available at this moment for qstats.

qstats Examples and Code Snippets

Example usage

Lines of Code : 4

License : Permissive (MIT)

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echo -e "5\n1\n3" | qstats -m

qstats -s a_file.dat another_file.dat

grep "COND1" mycsv.csv | cut -d , -f 2 | tail +2 | qstats -s

tr , '\n' < file.txt | qstats

Installation

Lines of Code : 2

License : Permissive (MIT)

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$ make
$ make install

Community Discussions

Trending Discussions on qstats

Replicating PCAP packets read by dpdk pktgen for multiple source addresses

QUESTION

Replicating PCAP packets read by dpdk pktgen for multiple source addresses

Asked 2020-Sep-14 at 15:22

I want to use dpdk pktgen to read a pcap file with IP packets. Then replay each IP packet 10 times with unique IP address. Example if my pcap file has 20 packets, starting with TCP SYN packet, then I want to replay each packet with source IPs in my list, thus total of 10 x 20 packets should be sent. Basically, I want to resend buffers stored in rte_mbuf again and again, after modifying source IP in each run.

Please let me know what's the best way of doing this.

I first thought of editing the source IP in the rte_mbuf pointed by pkts before calling the rte_eth_tx_burst(info->pid, qid, pkts, cnt) function by having a source IP incrementing loop but it seems that rte_eth_tx_burst function frees up the rte_mbuf pointed by pkts after sending the packet once so I cannot edit the pkts buffer again.

...

ANSWER

Answered 2020-Sep-14 at 13:33

to retain the DPDK packet buffer in the memory please use rte_mbuf_refcnt_update to update mbuf ptr -> refcnt from 1 to 10. This retains the buffer in memory till either rte_eth_tx_burst or rte_pktmbuf_freeor combination of both is invoked 10 times for same mbuf.

note: please add code to the current snippet to

Ensure the current MBUF is IP.
re-calculate the IP checksum when IP header is modified.

[EDIT-1] based on skype conversation, highlighted the main area to focus. Changes on actual dpdk-pktgen will affect function and performance. Recommended using dpdk-burstreplay or custom built DPDK app.

Source https://stackoverflow.com/questions/63876049

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install qstats

Read "INSTALL" file for more information.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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