Date: Sun, 25 Mar 2012 23:51:41 +0400 From: Lytochkin Boris <lytboris@gmail.com> To: Adrian Chadd <adrian.chadd@gmail.com> Cc: "freebsd-wireless@freebsd.org" <freebsd-wireless@freebsd.org> Subject: Re: [ath][CURRENT] Triangle-shaped network performance Message-ID: <CAEJYa-SgTmyX_DodPhcd9B2CYjFB5T0j10KpHX7MHD_g24jUAA@mail.gmail.com> In-Reply-To: <CAJ-Vmom-cBgnuAdXCcH5iVkf32kU6O8T_T%2B==uGpNdBsGu3wOA@mail.gmail.com> References: <CAEJYa-QRx3XU6GjcWnJSTEON2QOUe_gA9Oh0Xo9Vk2ksm0pX%2Bg@mail.gmail.com> <4f6f67a7.4a0c440a.3941.ffffc865@mx.google.com> <CAEJYa-RPhRng5tDG88yM8Rx1QE-ttkcoanEH=vn-NN-kc9B6oQ@mail.gmail.com> <CAJ-Vmo=JuGc0XA_2-q8FB9SGK4kJcQwC3ry0wm7sRxKe8dHaTQ@mail.gmail.com> <CAEJYa-TKdEjynQnM8LTXM863vWWw518VXX_DGVEpw6OvMPzgig@mail.gmail.com> <CAJ-Vmom-cBgnuAdXCcH5iVkf32kU6O8T_T%2B==uGpNdBsGu3wOA@mail.gmail.com>
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On Sun, Mar 25, 2012 at 11:36 PM, Adrian Chadd <adrian.chadd@gmail.com> wro=
te:
> Well, you changed both the OS _and_ the NIC. How are we supposed to
> debug this? :-)
Let's forget about past :) I would have to change my OS back unless
this madness is fixed :(
>
>> =A0Some more facts: ping triangles for two laptops connected to server
>> =A0are not synchronized and roll-over independently.
>
> I still don't know what's causing this. Try running athstats a little
> more and try to correlate changes in latency with changes in the
> output of athstats.
Here it is.
Transfer initiation (you can see when it boosts):
>athstats 1
input output altrate short long xretry crcerr crypt phyerr rssi =
rate
608153 1085770 74 0 30727 2591 2749 0 0 62 =
MCS11
4 3 0 0 0 0 0 0 0 62 =
MCS11
7 4 0 0 0 0 0 0 0
62 MCS11 <--- transfer initiated
4 5 0 0 0 0 0 0 0 61 =
MCS11
4 4 0 0 0 0 0 0 0 62 =
MCS11
7 8 0 0 0 0 0 0 0 59 =
MCS15
9 8 0 0 14 3 0 0 0 54 =
48M
6 6 0 0 4 1 0 0 0 57 =
36M
21 17 0 0 78 15 0 0 0 54 =
MCS11
8 6 0 0 0 0 0 0 0 55 =
36M
10 6 0 0 0 0 0 0 0 50 =
36M
12 8 0 0 0 0 0 0 0 59 =
36M
10 13 0 0 0 0 0 0 0 58 =
36M
7 8 0 0 1 0 0 0 0 60 =
36M
6 6 0 0 0 0 0 0 0 61 =
36M
5 5 0 0 0 0 0 0 0 61 =
36M
6 8 0 0 1 0 0 0 0 61 =
36M
8 7 0 0 1 0 0 0 0 59 =
54M
12 28 0 0 0 0 0 0 0 61 =
36M
26 31 0 0 5 0 0 0 0 57 =
36M
6 10 0 0 0 0 0 0 0 59 =
36M
input output altrate short long xretry crcerr crypt phyerr rssi =
rate
608336 1085966 74 0 30831 2610 2749 0 0 60 =
36M
6 6 0 0 0 0 0 0 0 65 =
36M
22 53 0 0 0 0 0 0 0 61 =
36M
28 48 0 0 0 0 0 0 0 61 =
36M
28 48 0 0 1 0 0 0 0 59 =
12M
28 49 0 0 8 0 0 0 0 59 =
MCS12
30 49 0 0 2 0 0 0 0 62 =
MCS12
29 49 0 0 5 0 0 0 0 59 =
MCS12
24 39 0 0 1 0 0 0 0 60 =
MCS12
33 45 0 0 1 0 0 0 0 58 =
MCS12
31 52 0 0 3 0 0 0 0 59 =
MCS11
32 52 0 0 2 0 0 0 0 66 =
MCS11
28 51 0 0 1 0 0 0 0 59 =
MCS11
29 50 0 0 3 0 0 0 0 60 =
MCS12
28 53 0 0 3 0 0 0 0 57 =
MCS11
28 50 0 0 1 0 0 0 0 60 =
MCS12
37 56 0 0 3 0 0 0 0 58 =
MCS11
36 50 0 0 0 0 0 0 0 63 =
MCS11
31 55 0 0 2 0 0 0 0 65 =
MCS11
31 54 0 0 3 0 0 0 0 62 =
MCS12
35 51 0 0 3 0 0 0 0 60 =
MCS12
input output altrate short long xretry crcerr crypt phyerr rssi =
rate
608941 1086977 74 0 30875 2610 2749 0 0 59 =
MCS11
29 52 0 0 1 0 0 0 0 62 =
MCS12
28 50 0 0 3 0 0 0 0 61 =
MCS12
28 50 0 0 0 0 0 0 0 62 =
MCS11
32 58 0 0 7 0 0 0 0 57 =
MCS12
40 55 0 0 2 0 0 0 0 62 =
MCS12
30 56 0 0 2 0 0 0 0 63 =
MCS12
35 60 0 0 1 0 0 0 0 64 =
MCS12
32 57 0 0 1 0 0 0 0 63 =
MCS12
29 52 0 0 1 0 0 0 0 61 =
MCS12
17 31 0 0 0 0 0 0 0 62 =
36M
33 53 0 0 3 0 0 0 0 63 =
18M
30 50 0 0 2 0 0 0 0 64 =
36M
31 50 0 0 2 0 0 0 0 63 =
36M
28 50 0 0 4 0 0 0 0 62 =
36M
29 52 0 0 3 0 0 0 0 62 =
36M
29 52 0 0 3 0 0 0 0 62 =
36M
37 55 0 0 2 0 0 0 0 56 =
MCS11
30 54 0 0 3 0 0 0 0 60 =
36M
31 53 0 0 4 0 0 0 0 60 =
36M
36 55 0 0 1 0 0 0 0 63 =
36M
input output altrate short long xretry crcerr crypt phyerr rssi =
rate
609586 1088075 74 0 30923 2610 2749 0 0 54 =
36M
30 53 0 0 2 0 0 0 0 56 =
24M
34 56 0 0 3 0 0 0 0 51 =
36M
33 54 0 0 25 5 0 0 0 64 =
36M
32 53 0 0 2 0 0 0 0 54 =
36M
35 52 0 0 4 0 0 0 0 59 =
MCS15
30 50 0 0 2 0 0 0 0 60 =
MCS15
30 54 0 0 5 0 0 0 0 53 =
MCS15
34 55 0 0 3 0 0 0 0 63 =
MCS15
518 981 0 0 11 0 0 0 0 44 =
MCS15
1398 2659 1 0 29 0 0 0 0 20 =
MCS15
3051 5716 1 0 64 0 2 0 0 24 =
MCS15
661 1210 1 0 43 3 0 0 0 27 =
MCS15
563 1024 0 0 128 11 0 0 0 32 =
MCS15
25 39 0 0 0 0 0 0 0 38 =
MCS12
5 10 0 0 1 0 0 0 0 47 =
36M
7 10 0 0 0 0 0 0 0 49 =
MCS12
8 6 0 0 0 0 0 0 0 56 =
MCS11
63 26 0 0 1 0 0 0 0 44 =
MCS11
1586 3000 0 0 37 0 0 0 0 20 =
MCS12
2210 4150 0 0 61 0 0 0 0 15 =
MCS12
input output altrate short long xretry crcerr crypt phyerr rssi =
rate
622148 1111497 78 0 31400 2629 2751 0 0 22 =
MCS12
2203 4145 0 0 63 2 0 0 0 23 =
MCS12
2144 4022 0 0 64 2 0 0 0 23 =
MCS12
2222 4169 0 0 45 0 0 0 0 18 =
MCS12
2270 4245 0 0 45 0 0 0 0 27 =
MCS12
2227 4150 0 0 62 0 0 0 0 25 =
MCS12
2200 4120 0 0 56 0 0 0 0 27 =
MCS12
2189 4122 0 0 59 0 0 0 0 21 =
MCS12
2195 4136 0 0 57 0 0 0 0 24 =
MCS12
2205 4146 0 0 55 0 0 0 0 23 =
MCS12
2225 4187 0 0 63 0 2 0 0 31 =
MCS12
2192 4114 0 0 48 0 0 0 0 26 =
MCS12
2206 4150 0 0 47 0 1 0 0 30 =
MCS12
Transfer abortion:
1551 2931 1 0 58 1 4 0 0 28 =
MCS12
1657 3111 0 0 29 0 0 0 0 29 =
MCS12
1361 2576 0 0 19 0 0 0 0 30 =
MCS12
1564 2962 0 0 24 0 0 0 0 31 =
MCS12
input output altrate short long xretry crcerr crypt phyerr rssi =
rate
840750 1522646 89 0 36373 2664 2834 0 0 21 =
MCS12
1623 3030 0 0 38 0 0 0 0 30 =
MCS12
1497 2827 0 0 37 0 5 0 0 42 =
MCS12
1450 2749 0 0 31 0 0 0 0 36 =
MCS12
1381 2576 1 0 41 1 0 0 0
28 MCS12 <-- stop transfer, pings still are ok
119 201 0 0 11 1 0 0 0 47 =
1M
10 9 0 0 0 0 0 0 0 53 =
54M
5 4 0 0 0 0 0 0 0 56 =
54M
21 18 0 0 1 0 0 0 0 59 =
MCS15
5 3 0 0 0 0 0 0 0 58 =
54M
6 4 0 0 0 0 0 0 0 59 =
54M
13 13 0 0 0 0 0 0 0 54 =
54M
8 8 0 0 8 2 0 0 0 56 =
54M
3 3 0 0 0 0 0 0 0 57 =
54M
5 5 0 0 0 0 0 0 0 58 =
54M
8 7 0 0 1 0 0 0 0 59 =
54M
8 6 0 0 0 0 0 0 0 60 =
54M
3 3 0 0 0 0 0 0 0 60 =
54M
6 6 0 0 1 0 0 0 0 60 =
MCS15
3 3 0 0 0 0 0 0 0 61 =
54M
7 7 0 0 0 0 0 0 0 62 =
54M
input output altrate short long xretry crcerr crypt phyerr rssi =
rate
846937 1534134 90 0 36542 2668 2839 0 0 62 =
MCS15
5 5 0 0 0 0 0 0 0 62 =
MCS15
6 5 0 0 0 0 0 0 0 62 =
MCS15
6 6 0 0 0 0 0 0 0
62 MCS12 <-- ping triangles start
7 6 0 0 0 0 0 0 0 62 =
MCS15
6 9 0 0 1 0 0 0 0 66 =
MCS12
11 8 0 0 0 0 0 0 0 62 =
48M
--=20
Boris Lytochkin
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