Bug 260929 - diff command extremely slow on fastq files
Summary: diff command extremely slow on fastq files
Status: New
Alias: None
Product: Base System
Classification: Unclassified
Component: bin (show other bugs)
Version: 13.0-RELEASE
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-01-04 17:36 UTC by Jason W. Bacon
Modified: 2022-01-13 15:23 UTC (History)
3 users (show)

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Description Jason W. Bacon freebsd_committer freebsd_triage 2022-01-04 17:36:01 UTC 
Diffing the attached files after uncompressing on FreeBSD 13.0:

FreeBSD coral.acadix  bacon ~ 1006: time diff temp1.fastq temp2.fastq > /dev/null
       73.13 real        72.66 user         0.02 sys

On a CentOS 7 VM running on the same host:

Linux centos7.local  bacon ~ 586: (pkgsrc): time diff temp1.fastq temp2.fastq  > /dev/null
0.779u 0.022s 0:00.80 98.7%     0+0k 0+0io 0pf+0w
Comment 1 Jason W. Bacon freebsd_committer freebsd_triage 2022-01-04 17:38:44 UTC 
Attachments were too large, so linking here:

http://acadix.biz/~bacon/temp1.fastq.xz
http://acadix.biz/~bacon/temp2.fastq.xz