Re: bin/50638: Extreme slowness on loading gzipped kernels on oldCPUs

[Martin Husemann <martin%duskware.de@localhost>]

The following reply was made to PR bin/50638; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%netbsd.org@localhost, tsutsui%ceres.dti.ne.jp@localhost
Cc: 
Subject: Re: bin/50638: Extreme slowness on loading gzipped kernels on oldCPUs
Date: Tue, 12 Jan 2016 13:31:26 +0100

 And the ideal variant would do it in:
 
 >  non compressed kernel:
 >  
 >    1452589100:570546000: > boot netbsd
 >    1452589150:429907000: Copyright(c)...
 >    = 49.8594s
 
 + total time for one full decompression:
 
 # ls -l netbsd
 -rw-r--r--  1 root  wheel  1827667 Jan 12 09:04 netbsd
 # file netbsd
 netbsd: gzip compressed data, last modified: Tue Jan 12 08:05:45 2016, max compression, from Unix
 # /usr/bin/time gzcat netbsd >/dev/null
        29.96 real        23.04 user         1.78 sys
 
 ... so like 80s.
 
 
 Martin