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 Nu sariti imediat pe torrentele noi / Do not immediately jump on new torrents
- Mai ales daca aveti conexiuni mici. Cea mai buna
viteza se intalneste cand sunt mai multi seederi, iar SLR-ul este la
nivel inalt. (Partea proasta este ca nu mai puteti face seed mult.
Depinde de dvs sa cantariti partile bune si rele ale situatiei)
- The download speed mostly depends on the seeder-to-leecher ratio (SLR). Poor download speed is
mainly a problem with new and very popular torrents where the SLR is low.
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(Proselytising sidenote: make sure you remember that you did not enjoy the low speed.
Seed so that others will not endure the same.)
Limitati viteza de upload / Limit your upload speed
Viteza de upload afecteaza viteza de download in 2 moduri:
- Sistemul bittorrent tinde sa
favorizeze acei utilizatori (peers) care fac upload. Asta inseamna ca
daca A si B trag acelasi torrent si A ii trimite date lui B la viteze
mari, atunci B va incerca sa faca acelasi lucru. Datorita acestui
lucru, vitezele mari de upload inseamna viteze mari de download.
- Datorita
sistemului TCP, atunci cand A trage ceva de la B trebuie sa ii spune
lui B ca a primit datele ce i-au fost trimise. (Aceasta se numeste
"acknowledgements" - ACKuri -, un fel de mesaj "am primit !"). Daca A
nu face asta atunci B nu mai trimite date si asteapta. Daca A face
upload la viteza maxima atunci nu mai ramane banda si pentru a trimite
ACKuri rapid. Datorita acestui lucru, viteza mare de upload duce la
viteza mica de download.
Cea mai buna solutie este o combinare intre cele doua. O regula buna este sa tineti uploadul la 80% din viteza teoretica. Va trebui sa aflati care din optiuni va convine cel mai mult. (Retineti ca un upload mare conteaza la ratio.)
Daca folositi mai multi clienti, trebuie sa tineti cont de viteza de
upload globala. Unii clienti (e.g. Azureus) limiteaza uploadul global,
altii (e.g. Shad0w's) o fac in functie de torrent. Cunoasteti-va
clientul. Acelasi lucru se aplica si daca va folositi conexiunea in
alte scopuri. (e.g. browsing sau ftp), ganditi-va la viteza totala de
upload.
The upload speed affects the download speed in essentially two ways:
- Bittorrent peers tend to favour those other peers that upload to them. This means that if A and B
are leeching the same torrent and A is sending data to B at high speed then B will try to reciprocate.
So due to this effect high upload speeds lead to high download speeds.
- Due to the way TCP works, when A is downloading something from B it has to keep telling B that
it received the data sent to him. (These are called acknowledgements - ACKs -, a sort of "got it!" messages).
If A fails to do this then B will stop sending data and wait. If A is uploading at full speed there may be no
bandwidth left for the ACKs and they will be delayed. So due to this effect excessively high upload speeds lead
to low download speeds.
The full effect is a combination of the two. The upload should be kept as high as possible while allowing the
ACKs to get through without delay. A good thumb rule is keeping the upload at about 80% of the theoretical
upload speed. You will have to fine tune yours to find out what works best for you. (Remember that keeping the
upload high has the additional benefit of helping with your ratio.)
If you are running more than one instance of a client it is the overall upload speed that you must take into account.
Some clients (e.g. Azureus) limit global upload speed, others (e.g. Shad0w's) do it on a per torrent basis.
Know your client. The same applies if you are using your connection for anything else (e.g. browsing or ftp),
always think of the overall upload speed.
Limitati numarul de conexiuni simultane / Limit the number of simultaneous connections
- Unele sisteme de operare (Windows 9x) nu accepta un
numar mare de conexiuni, si pot sa nu mai functioneze bine. De
asemenea, unele routere (mai ales daca au NAT si/sau firewall) tind sa
functioneze incet sau sa pice cand trebuie sa lucreze cu multe
conexiuni. Nu exista valori fixe in acest caz, puteti incearca 60-100
si experimentati. Retineti ca aceste valori se adauga, daca rulati 2
clienti numarul conexiunilor se aduna de la amandoi.
- Some operating systems (like Windows 9x) do not deal well with a large number of connections, and may even crash.
Also some home routers (particularly when running NAT and/or firewall with stateful inspection services) tend to become
slow or crash when having to deal with too many connections. There are no fixed values for this, you may try 60 or 100
and experiment with the value. Note that these numbers are additive, if you have two instances of
a client running the numbers add up.
Limitati numarului de uploaduri simultane / Limit the number of simultaneous uploads
- Conexiunea limiteaza numarul de peers (utilizatori)
cu care clientul dvs comunica si/sau downloadeaza. Uploadurile
limiteaza numarul de peers la care clientul dvs uploadeaza de fapt.
Numarul ideal este mai mic decat numarul de conexii si depinde de
conexiunea dvs de internet.
- Isn't this the same as above? No. Connections limit the number of peers your client is talking to and/or
downloading from. Uploads limit the number of peers your client is actually uploading to. The ideal number is
typically much lower than the number of connections, and highly dependent on your (physical) connection.
Putina rabdare / Just give it some time
- Dupa cum am explicat mai sus, utilizatorii care
uploadeaza sunt favorizati.Cand incepeti sa descarcati un torrent nou,
nu aveti nimic de oferit si utilizatorii (peers) tind sa va ignore.
Aceasta face ca inceputul sa fie incet mai ales daca sunt putin
seederi. Viteza de download va creste imediat ce veti avea ceva de
oferit.
- As explained above peers favour other peers that upload to them. When you start leeching a new torrent you have
nothing to offer to other peers and they will tend to ignore you. This makes the starts slow, in particular if,
by change, the peers you are connected to include few or no seeders. The download speed should increase as soon
as you have some pieces to share.
De ce navighez incet in timp ce downloadez? / Why is my browsing so slow while leeching?
- Viteza de download este intotdeauna un numar finit.
Daca trageti un torrent la o viteza mare, acest lucru va va ocupa banda
si, cu siguranta, navigarea va avea de suferit.
Navigarea e doar un exemplu, acelasi lucru se aplica si la jocurile
online, irc etc...
- Your download speed is always finite. If you are a peer in a fast torrent it will almost certainly saturate your
download bandwidth, and your browsing will suffer. At the moment there is no client that allows you to limit the
download speed, only the upload. You will have to use a third-party solution,
such as NetLimiter. Browsing was used just as an example, the same would apply to gaming, IMing, etc...
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