Hi there,
I'm currently untarring a pkgsrc.tar.gz (48MB) to /usr. The
commandline I used is:
# nohup tar xfz pkgsrc.tar.gz -C /usr &
so nothing is written to the stdout, it justs gunzips and untars. And
I have the feeling it's extremely slow. I'm running:
NetBSD rpi 7.0_RC1 NetBSD 7.0_RC1 (RPI.201507072130Z) evbarm
and it's on a RaspberryPi model B+
The microSD card is an ADATA (32GB), I don't think it's class 10,
maybe class 4 (can't remove it from its slot now while the RPi is
running). The boot messages concerning it are:
ld0 at sdmmc0: <0x03:0x5344:SS32G:0x80:0x2554f92d:0x0e4>
ld0: 30436 MB, 7729 cyl, 128 head, 63 sec, 512 bytes/sect x 62333952 sectors
ld0: 4-bit width, bus clock 50.000 MHz
So, while the untarring command is running, I check the speed with iostat:
tty ld0 CPU
tin tout KB/t t/s MB/s us ni sy in id
0 20 7.767 15 0.113 0 0 1 3 95
0 131 8.194 31 0.246 0 0 3 3 94
0 44 7.871 31 0.236 0 0 1 3 96
0 44 7.793 29 0.219 1 0 1 2 96
0 44 8.133 30 0.236 0 0 2 2 96
0 44 7.871 31 0.236 0 0 1 1 98
0 44 7.793 29 0.219 0 0 1 4 95
0 44 7.939 33 0.253 0 0 2 1 97
0 44 7.931 29 0.222 0 0 0 2 98
0 44 7.571 28 0.205 0 0 6 4 90
0 44 7.793 29 0.219 0 0 3 2 95
0 44 8.294 34 0.273 0 0 3 5 92
0 44 8.000 28 0.217 0 0 3 0 97
0 44 8.067 30 0.234 0 0 0 3 97
It's on average between 0.20 and 0.25 MB/s, don't you think it's
unreasonably slow? Do you have any piece of advice for me?
Thanks,
JB