[Ninux-Wireless] tinc CPU optimization
Gioacchino Mazzurco
gmazzurco89 a gmail.com
Dom 3 Lug 2011 13:57:00 CEST
senza tinc la configurazione rimane uguale ma il traffico al posto di
passare dal tunnel via internet passa solo attraverso i link wireless
Il 03 luglio 2011 13:51, Antonio Quartulli <ordex a autistici.org> ha scritto:
> On dom, lug 03, 2011 at 01:48:37 +0200, Gioacchino Mazzurco wrote:
>> il test e' sempre PC( iperf -c ) <-- cavo lan --> Piconstation (
>> btman-adv + tinc )<-- tinc ---> PC( batman-adv + tinc + iperf -s)
>
> anche senza TINC la configurazione rimane uguale? scusa ma non ho capito
> questo daalle mail precedenti
>
>>
>> >usa un vincolo temporale o quantitativo, sti valori sono troppo
>> >deviati..
>>
>> quei test non sono fatti in parallelo sono fatti in modo sequenziale
>> quindi volta per volta c'e' ne e' attivo solo uno
>>
>> Il 03 luglio 2011 13:40, Darkman <darkman a darkman.it> ha scritto:
>> > Magari se scegliessi un test "unico" sarebbe anche meglio,
>> > usa un vincolo temporale o quantitativo, sti valori sono troppo
>> > deviati..
>> > Se non mi dicessi della CPU a palla, guardando sta roba ti direi che è
>> > congestione..
>> >
>> > Il giorno 03 luglio 2011 13:31, Gioacchino Mazzurco <gmazzurco89 a gmail.com>
>> > ha scritto:
>> >>
>> >> altra serie di test
>> >>
>> >> [ 4] 0.0-18.8 sec 384 KBytes 167 Kbits/sec
>> >> [ 4] 0.0-17.5 sec 384 KBytes 180 Kbits/sec
>> >> [ 4] 0.0-20.0 sec 384 KBytes 157 Kbits/sec
>> >> [ 4] 0.0-21.1 sec 384 KBytes 149 Kbits/sec
>> >> [ 4] 0.0-23.5 sec 512 KBytes 178 Kbits/sec
>> >> [ 4] 0.0-32.3 sec 384 KBytes 97.3 Kbits/sec
>> >> [ 4] 0.0-20.8 sec 384 KBytes 151 Kbits/sec
>> >> [ 4] 0.0-27.7 sec 256 KBytes 75.8 Kbits/sec
>> >> [ 4] 0.0-21.8 sec 256 KBytes 96.3 Kbits/sec
>> >> [ 4] 0.0-14.3 sec 512 KBytes 294 Kbits/sec
>> >> [ 4] 0.0-14.0 sec 512 KBytes 299 Kbits/sec
>> >> [ 4] 0.0-37.6 sec 512 KBytes 112 Kbits/sec
>> >> [ 4] 0.0-18.7 sec 512 KBytes 224 Kbits/sec
>> >> [ 4] 0.0-21.3 sec 384 KBytes 148 Kbits/sec
>> >> [ 4] 0.0-17.9 sec 640 KBytes 293 Kbits/sec
>> >> [ 4] 0.0-24.8 sec 512 KBytes 169 Kbits/sec
>> >> [ 4] 0.0-23.5 sec 512 KBytes 178 Kbits/sec
>> >> [ 4] 0.0-16.4 sec 384 KBytes 192 Kbits/sec
>> >> [ 4] 0.0-21.4 sec 384 KBytes 147 Kbits/sec
>> >>
>> >> ho spento dnsmasq che non serviva a niente e andiamo di poco ma meglio
>> >>
>> >> Il 03 luglio 2011 13:16, Darkman <darkman a darkman.it> ha scritto:
>> >> > Il sintomo è abbastanza chiaro, ma dubito sia colpa della CPU o meglio,
>> >> > secondo me qualcosa
>> >> > è stata scritta male, 100Kbps sono davvero ridicoli. A maggior ragione
>> >> > quando ste cpu hanno anche qualche set dedicato
>> >> > alla crittografia simmetrica...
>> >> >
>> >> > Il giorno 03 luglio 2011 13:04, Gioacchino Mazzurco
>> >> > <gmazzurco89 a gmail.com>
>> >> > ha scritto:
>> >> >>
>> >> >> ma il problema sembra proprio l'eccessivo utilizzo di cpu per la vpn
>> >> >> perche' stando in ssh sulla picostation mentre c'e' traffico che passa
>> >> >> sulla vpn diventa completamente unresponsive non sente nemmeno ctrl+c
>> >> >> sulla shell... quando il traffico finisce mi esegue tutto quello che
>> >> >> gli avevo mandato nel fratempo
>> >> >>
>> >> >> Il 03 luglio 2011 13:01, Gioacchino Mazzurco <gmazzurco89 a gmail.com> ha
>> >> >> scritto:
>> >> >> >>Hai la possibilità di usare una CPU + potente (tincare dal PC)?
>> >> >> >
>> >> >> > dovrei installarmi anche batman-adv sul pc...
>> >> >> >
>> >> >> > Il 03 luglio 2011 12:58, Darkman <darkman a darkman.it> ha scritto:
>> >> >> >> E' chiaro che non può essere il tuo upstream,
>> >> >> >> ma sei certo che il collo di bottiglia non sia nella capacità di sta
>> >> >> >> rete
>> >> >> >> mesh tunnellata?
>> >> >> >> Hai provato a lanciare 2 iperf in parallelo?
>> >> >> >> Hai la possibilità di usare una CPU + potente (tincare dal PC)?
>> >> >> >>
>> >> >> >>
>> >> >> >> Il giorno 03 luglio 2011 12:34, Gioacchino Mazzurco
>> >> >> >> <gmazzurco89 a gmail.com>
>> >> >> >> ha scritto:
>> >> >> >>>
>> >> >> >>> la picostation a e la z sono la stessa picostation... dalla
>> >> >> >>> picostation a posso decidere se accendere tinc e quindi far passare
>> >> >> >>> traffico mesh su internet oppure se usare solo i link wireless
>> >> >> >>>
>> >> >> >>> dal computer pocco decidere sia di usare la picostation come gw sia
>> >> >> >>> di
>> >> >> >>> usare il router adsl
>> >> >> >>>
>> >> >> >>> le casistiche quindi sono 3
>> >> >> >>>
>> >> >> >>> iperf via internet senza tinc >500KB/s
>> >> >> >>> iperf via mesh senza tinc ~ 20Kb/s
>> >> >> >>> iperf via mesh tunnellata su internet con tinc ~100Kb/s
>> >> >> >>>
>> >> >> >>> Il 03 luglio 2011 12:27, Darkman <darkman a darkman.it> ha scritto:
>> >> >> >>> > Fammi capire:
>> >> >> >>> > - tra le tua pico(A) e quella(Z) con l'adsl ci sono diversi nodi
>> >> >> >>> > e
>> >> >> >>> > con
>> >> >> >>> > iperf
>> >> >> >>> > hai risultati di 20Kbps (A->Z) in L3 puro ? Mentre se usi tinc va
>> >> >> >>> > a
>> >> >> >>> > 100Kbps?
>> >> >> >>> > - chi sono gli end-point tinc?
>> >> >> >>> >
>> >> >> >>> >
>> >> >> >>> >
>> >> >> >>> >
>> >> >> >>> >
>> >> >> >>> > Il giorno 03 luglio 2011 12:12, Gioacchino Mazzurco
>> >> >> >>> > <gmazzurco89 a gmail.com>
>> >> >> >>> > ha scritto:
>> >> >> >>> >>
>> >> >> >>> >> senza tinc praticamente non c'e' connettivita' ( a volte va ma
>> >> >> >>> >> roba
>> >> >> >>> >> tipo 20k perche' sono un sacco di op alcuni dei quali fanno
>> >> >> >>> >> schifo...)
>> >> >> >>> >>
>> >> >> >>> >> se invece faccio iperf passando per internet senza tinc ottengo
>> >> >> >>> >> risultati sempre sopra i 500KB/s
>> >> >> >>> >>
>> >> >> >>> >> Il 03 luglio 2011 12:01, Darkman <darkman a darkman.it> ha
>> >> >> >>> >> scritto:
>> >> >> >>> >> > Hai gia controllato i valori tra le 2 pico con e senza tinc?
>> >> >> >>> >> >
>> >> >> >>> >> >
>> >> >> >>> >> > Il giorno 03 luglio 2011 11:45, Gioacchino Mazzurco
>> >> >> >>> >> > <gmazzurco89 a gmail.com>
>> >> >> >>> >> > ha scritto:
>> >> >> >>> >> >>
>> >> >> >>> >> >> iperf -c su computer che usa una picostation come gateway ->
>> >> >> >>> >> >> Picostation con tinc <- adsl 8 megabit -> iperf --server su
>> >> >> >>> >> >> eigenlab.org
>> >> >> >>> >> >>
>> >> >> >>> >> >>
>> >> >> >>> >> >> Il 03 luglio 2011 11:33, Darkman <darkman a darkman.it> ha
>> >> >> >>> >> >> scritto:
>> >> >> >>> >> >> > 100kbps mi pare davvero troppo poco anche per quelle
>> >> >> >>> >> >> > cessonanocpu.
>> >> >> >>> >> >> > Come li hai ottenuti sti valori?
>> >> >> >>> >> >> >
>> >> >> >>> >> >> > Il giorno 03 luglio 2011 11:10, Gioacchino Mazzurco
>> >> >> >>> >> >> > <gmazzurco89 a gmail.com>
>> >> >> >>> >> >> > ha scritto:
>> >> >> >>> >> >> >>
>> >> >> >>> >> >> >> Ciao a tutti!
>> >> >> >>> >> >> >>
>> >> >> >>> >> >> >> Facendo dei test mi sono accorto che le vpn con tinc
>> >> >> >>> >> >> >> installato
>> >> >> >>> >> >> >> sui
>> >> >> >>> >> >> >> nodi ci vanno max a 100k anche se la banda dell'adsl e'
>> >> >> >>> >> >> >> molta
>> >> >> >>> >> >> >> di
>> >> >> >>> >> >> >> piu'... ho cominciato a cercare ed ho letto che la causa
>> >> >> >>> >> >> >> e'
>> >> >> >>> >> >> >> probabilmente la CPU che non ce la fa a fare encryption
>> >> >> >>> >> >> >> decryption
>> >> >> >>> >> >> >> piu' velocemente di cosi'
>> >> >> >>> >> >> >>
>> >> >> >>> >> >> >> leggendo il man di tinc ho trovato questo
>> >> >> >>> >> >> >>
>> >> >> >>> >> >> >> Cipher = cipher (blowfish)
>> >> >> >>> >> >> >> The symmetric cipher algorithm used to encrypt
>> >> >> >>> >> >> >> UDP
>> >> >> >>> >> >> >> packets. Any cipher supported by OpenSSL is recognised.
>> >> >> >>> >> >> >> Furâ€
>> >> >> >>> >> >> >> thermore, specifying "none" will turn off
>> >> >> >>> >> >> >> packet
>> >> >> >>> >> >> >> encryption. It is best to use only those ciphers which
>> >> >> >>> >> >> >> support
>> >> >> >>> >> >> >> CBC mode.
>> >> >> >>> >> >> >>
>> >> >> >>> >> >> >> mettendo none dovrebbe essere disabilitata l' encryption e
>> >> >> >>> >> >> >> quindi
>> >> >> >>> >> >> >> avere piu' banda, il meccanismo degli host con il file con
>> >> >> >>> >> >> >> la
>> >> >> >>> >> >> >> chiave
>> >> >> >>> >> >> >> pubblica continua a funzionare disabilitando la cifratura,
>> >> >> >>> >> >> >> e
>> >> >> >>> >> >> >> soprattutto bastera' aggiungere quell'opzione li oppure
>> >> >> >>> >> >> >> bisogna
>> >> >> >>> >> >> >> cambiare altre conf?
>> >> >> >>> >> >> >>
>> >> >> >>> >> >> >> _______________________________________________
>> >> >> >>> >> >> >> Wireless mailing list
>> >> >> >>> >> >> >> Wireless a ml.ninux.org
>> >> >> >>> >> >> >> http://ml.ninux.org/mailman/listinfo/wireless
>> >> >> >>> >> >> >>
>> >> >> >>> >> >> >
>> >> >> >>> >> >> >
>> >> >> >>> >> >> > _______________________________________________
>> >> >> >>> >> >> > Wireless mailing list
>> >> >> >>> >> >> > Wireless a ml.ninux.org
>> >> >> >>> >> >> > http://ml.ninux.org/mailman/listinfo/wireless
>> >> >> >>> >> >> >
>> >> >> >>> >> >> >
>> >> >> >>> >> >> _______________________________________________
>> >> >> >>> >> >> Wireless mailing list
>> >> >> >>> >> >> Wireless a ml.ninux.org
>> >> >> >>> >> >> http://ml.ninux.org/mailman/listinfo/wireless
>> >> >> >>> >> >>
>> >> >> >>> >> >
>> >> >> >>> >> >
>> >> >> >>> >> > _______________________________________________
>> >> >> >>> >> > Wireless mailing list
>> >> >> >>> >> > Wireless a ml.ninux.org
>> >> >> >>> >> > http://ml.ninux.org/mailman/listinfo/wireless
>> >> >> >>> >> >
>> >> >> >>> >> >
>> >> >> >>> >> _______________________________________________
>> >> >> >>> >> Wireless mailing list
>> >> >> >>> >> Wireless a ml.ninux.org
>> >> >> >>> >> http://ml.ninux.org/mailman/listinfo/wireless
>> >> >> >>> >>
>> >> >> >>> >
>> >> >> >>> >
>> >> >> >>> > _______________________________________________
>> >> >> >>> > Wireless mailing list
>> >> >> >>> > Wireless a ml.ninux.org
>> >> >> >>> > http://ml.ninux.org/mailman/listinfo/wireless
>> >> >> >>> >
>> >> >> >>> >
>> >> >> >>> _______________________________________________
>> >> >> >>> Wireless mailing list
>> >> >> >>> Wireless a ml.ninux.org
>> >> >> >>> http://ml.ninux.org/mailman/listinfo/wireless
>> >> >> >>>
>> >> >> >>
>> >> >> >>
>> >> >> >> _______________________________________________
>> >> >> >> Wireless mailing list
>> >> >> >> Wireless a ml.ninux.org
>> >> >> >> http://ml.ninux.org/mailman/listinfo/wireless
>> >> >> >>
>> >> >> >>
>> >> >> >
>> >> >> _______________________________________________
>> >> >> Wireless mailing list
>> >> >> Wireless a ml.ninux.org
>> >> >> http://ml.ninux.org/mailman/listinfo/wireless
>> >> >>
>> >> >
>> >> >
>> >> > _______________________________________________
>> >> > Wireless mailing list
>> >> > Wireless a ml.ninux.org
>> >> > http://ml.ninux.org/mailman/listinfo/wireless
>> >> >
>> >> >
>> >> _______________________________________________
>> >> Wireless mailing list
>> >> Wireless a ml.ninux.org
>> >> http://ml.ninux.org/mailman/listinfo/wireless
>> >>
>> >
>> >
>> > _______________________________________________
>> > Wireless mailing list
>> > Wireless a ml.ninux.org
>> > http://ml.ninux.org/mailman/listinfo/wireless
>> >
>> >
>> _______________________________________________
>> Wireless mailing list
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>
> --
> Antonio Quartulli
>
> ..each of us alone is worth nothing..
> Ernesto "Che" Guevara
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