Date: Tue, 29 Sep 2015 18:39:21 -0700 From: Jim Long <list@museum.rain.com> To: freebsd-questions@freebsd.org Subject: Is xzgrep broken? Message-ID: <20150930013921.GA80620@ns.umpquanet.com>
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xzgrep seems to crap out very quickly when reading a large-ish file
containing compressed ASCII SQL data (834014732 bytes compressed).
# time xzgrep 9314517 /disk1/smbd_share/backup/Daily_backup-20150927-001000.sql.xz | wc
0 0 0
real 0m0.005s
user 0m0.011s
sys 0m0.001s
xzcat appears to do better:
# time xzcat /disk1/smbd_share/backup/Daily_backup-20150927-001000.sql.xz | grep 9314517 | wc
17 374475 17592746
real 4m0.654s
user 3m45.401s
sys 0m26.678s
# xz -l /disk1/smbd_share/backup/Daily_backup-20150927-001000.sql.xz
Strms Blocks Compressed Uncompressed Ratio Check Filename
1 1 795.4 MiB 8345.1 MiB 0.095 CRC64 /disk1/smbd_share/backup/Daily_backup-20150927-001000.sql.xz
Jim
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