mean_client

Usage

usage: mean_client.py [-h] [--maxsam MAXSAM] [--nchan NCHAN] [--verbose VERBOSE] uut [uut ...]

Positional Arguments

uut

uut

Named Arguments

--maxsam

number of samples to collect

Default: 1

--nchan

number of channels per sample

Default: 32

--verbose

1: dump data, 0: silent

Default: 1

Outline:

UUT provides a single sample of mean data on 42100

thanks to this:

acq1001_343> cat /mnt/local/inetd.mean.conf
42100 stream tcp nowait root cat cat /dev/shm/subrate
42100 dgram udp wait root cat cat /dev/shm/subrate
acq1001_343> inetd /mnt/local/inetd.mean.conf

Tested on ACQ1001+ACQ435, buffer length 4096, SR=10000

acq1001_343> cat /mnt/local/sysconfig/acq400.sh REBOOT_KNOB=y BLEN=4096

Buffer Samples: 4096/4/32 = 32

Buffer Rate = 10000/32 = 330Hz

/dev/shm/subrate is updated at Buffer Rate.

Client side tests:

[dt100@brotto acq400]$ time  ./mean_client.py --verbose=0 --maxsam=100 acq1001_343

real        0m0.974s

ie 100 values per second is possible.

[dt100@brotto acq400]$  ./mean_client.py --maxsam=10 acq1001_343 | cut -d, -f1-8
000004a6,fffff93c,00000898,fffffc3d,00000bf3,fffffa4d,00000f8b,ffffec1c
000002e5,fffff936,00000895,fffffc5c,00000c00,fffffa44,00000fa0,ffffec22
00000c14,fffff95a,0000086a,fffffc45,00000c1e,fffffa31,00000fb2,ffffec10
00000304,fffff933,0000089a,fffffc55,00000c01,fffffa53,00000fca,ffffec1a
00000496,fffff942,00000882,fffffc45,00000c3d,fffffa31,00000fcb,ffffec05
00000933,fffff941,00000894,fffffc44,00000c22,fffffa5b,00000fac,ffffec2f
000003f1,fffff97f,0000089b,fffffc46,00000bfe,fffffa4a,00000f9b,ffffec25
00000a8d,fffff964,0000087a,fffffc61,00000c27,fffffa61,00000f9b,ffffec1a
00000386,fffff967,00000873,fffffc42,00000c18,fffffa46,00000fc8,ffffec3f

Mean values are int32.

get_mean(args)

get_parser()