Date: Fri, 9 Sep 2011 19:33:26 +0400 From: Lev Serebryakov <lev@serebryakov.spb.ru> To: Adrian Chadd <adrian@freebsd.org> Cc: freebsd-wireless@freebsd.org Subject: Re: AP performance (again): txpower regulation Message-ID: <192542574.20110909193326@serebryakov.spb.ru> In-Reply-To: <CAJ-VmonUioh4g3NScinYDU6gEFWDLeGKUYQfRyNoWr5%2BfjQeTw@mail.gmail.com> References: <663133681.20110907193747@serebryakov.spb.ru> <CAJ-Vmonai4LzwanLw7i5d-NyjN2b6GqfttjkdcROvOuEcuzEAw@mail.gmail.com> <437702009.20110907235248@serebryakov.spb.ru> <CAJ-Vmo=R-a%2BqhDLWj1n%2BBj70Pmg4WSL6bVZ6jwCUmNq=v7EBBw@mail.gmail.com> <426917282.20110908125907@serebryakov.spb.ru> <CAAUsrB5Qtokpcz-koUfYWCHrsnUUErQSAYHrXrW2F0Uvp3RzSA@mail.gmail.com> <4610390305.20110908154130@serebryakov.spb.ru> <CAAUsrB6LJ%2BmuTvaqHCySh6e9dMjzshohYFE4PQ3KTezZMZS2JA@mail.gmail.com> <1705262661.20110908180850@serebryakov.spb.ru> <CAAUsrB7CFu096x%2BKKWa=8O_VeSHOK10LuwJ2rWq6r8EidUrL=Q@mail.gmail.com> <CAJ-VmokvXfUAZpxDgv5gLrRdLYn3YwTXAOb7QiTyUg8K5yKLHg@mail.gmail.com> <458771414.20110908183656@serebryakov.spb.ru> <CAJ-Vmom_ZHKbqt%2BQgmdq_oPU-SugbrJ3LNS=g-cpcQ7KExusUw@mail.gmail.com> <4910491962.20110908185213@serebryakov.spb.ru> <CAJ-Vmo==J_9ZhnSciVKNaEaMhM4oeM9fr4yjzPev_MW3g9DALg@mail.gmail.com> <1273865639.20110908191303@serebryakov.spb.ru> <1607911768.20110909113824@serebryakov.spb.ru> <185315 4884.20110909145338@serebryakov.spb.ru> <CAJ-VmokAvtKTUGo5zBS3ry0nRH=P%2B1TNB2n-9dKK%2BSWn6FdJ2A@mail.gmail.com> <140679489.20110909154614@serebryakov.spb.ru> <CAJ-VmomQQGgSf=R8A1bvF9s_FqWBaCCzwFjG5eaoWAOhjHKkiw@mail.gmail.com> <CAJ-VmonUioh4g3NScinYDU6gEFWDLeGKUYQfRyNoWr5%2BfjQeTw@mail.gmail.com>
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Hello, Adrian.
You wrote 9 =F1=E5=ED=F2=FF=E1=F0=FF 2011 =E3., 16:08:41:
> * short retries are "I sent an RTS but didn't hear a CTS."
> * long retries are "I sent the frame but didn't hear an ACK."
Thanks for explanation.
> Since the default athstats doesn't spit out the ofdm and cck errors, try =
this:
> athstats -o
> input,output,altrate,short,long,xretry,crcerr,crypt,phyerr,rssi,ofdm,cck,=
rate
> 1
UDP Client -> Server, 20Mbit limited, from server's point of view:
[ 3] 63.0-64.0 sec 1.30 MBytes 10.9 Mbits/sec 1.231 ms 0/ 927 (0%)
[ 3] 64.0-65.0 sec 917 KBytes 7.51 Mbits/sec 9.829 ms 4/ 643 (0.6=
2%)
[ 3] 65.0-66.0 sec 929 KBytes 7.61 Mbits/sec 4.200 ms 4/ 651 (0.6=
1%)
[ 3] 66.0-67.0 sec 1.21 MBytes 10.1 Mbits/sec 1.662 ms 4/ 864 (0.4=
6%)
[ 3] 67.0-68.0 sec 923 KBytes 7.56 Mbits/sec 1.172 ms 4/ 647 (0.6=
2%)
[ 3] 68.0-69.0 sec 1.15 MBytes 9.68 Mbits/sec 1.116 ms 5/ 828 (0.6=
%)
[ 3] 69.0-70.0 sec 1.15 MBytes 9.65 Mbits/sec 0.889 ms 3/ 824 (0.3=
6%)
[ 3] 70.0-71.0 sec 1.14 MBytes 9.58 Mbits/sec 1.073 ms 5/ 820 (0.6=
1%)
athstat's point of view:
input output altrate short long xretry crcerr crypt phyerr rssi =
OFDM CCK rate
2734208 3163110 99418 0 2004400 60564 98493 0 2398 37 =
264025506 2028885 24M
563 7 0 0 1 0 246 0 0 37 =
13622 167 24M
910 10 0 0 13 3 186 0 1 36 =
8170 131 24M
699 9 0 0 8 2 221 0 2 36 =
11723 130 24M
795 9 0 0 6 1 221 0 2 37 =
10411 222 24M
846 9 0 0 8 1 175 0 0 36 =
8884 121 24M
872 11 0 0 12 1 199 0 1 36 =
9784 148 24M
947 8 0 0 0 0 153 0 2 36 =
7855 120 24M
883 8 0 0 6 1 129 0 0 37 =
8994 113 24M
836 9 0 0 8 2 195 0 0 36 =
9243 93 24M
912 5 0 0 6 1 213 0 2 36 =
10616 106 24M
1048 10 0 0 3 0 169 0 2 37 =
9601 93 24M
1047 10 0 0 6 1 148 0 0 37 =
10565 93 24M
685 12 0 0 20 5 233 0 0 36 =
12632 102 24M
719 9 0 0 4 1 255 0 0 36 =
12199 111 24M
854 8 0 0 1 0 183 0 0 36 =
10493 96 24M
907 6 0 0 3 0 198 0 0 36 =
9169 86 24M
848 8 0 0 4 0 190 0 0 36 =
11049 93 24M
444 8 0 0 4 1 189 0 0 37 =
14784 100 24M
604 9 0 0 0 0 156 0 0 35 =
12800 102 24M
1010 9 0 0 6 1 236 0 0 36 =
10268 86 24M
--=20
// Black Lion AKA Lev Serebryakov <lev@serebryakov.spb.ru>
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