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Author Topic: bad performance  (Read 13713 times)

ken

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Re: bad performance
« Reply #15 on: December 26, 2004, 03:38:16 PM »

Unfortunately, I don't think I'll be able to help here.  This problem doesn't afflict me, at least so I've noticed.  However, I'm behind a firewall that I don't control so I'm stuck as low-id.  Also, I only run aMule on the weekends, so it may not stay up long enough to encounter the problem.  Lastly, I mostly run aMule unattended and don't watch my connections that closely.  All I know is that eventually, my downloads complete.  Perhaps not as fast as they could or should, but they get there.

Am I to understand that the performance degrades over time, but isn't restored by restarting aMule, only by rebooting the OS?  That's definitely weird.  Something in the state of the OS is persisting between program runs.

What does "netstat -p tcp" produce at a time when aMule is experiencing the problem?  What about after you quit aMule?
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jie^

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Re: bad performance
« Reply #16 on: December 28, 2004, 06:53:08 PM »

Hi.

I also have bad performance with aMule:

1. I find alot of sources, but i can only download like 0.1 - 0.5 KB/s
2. After leaving download on a day i've only got a few MB per download.
3. Even though i have 500 KB/s for upload free noone is downloading from me

I have High ID, and i have tried different servers and reboot aMule. Latest version.

When i try eMule on my PC it only takes few hours to complete a whole download. (on the same files!)

I hope i can solve this, because i really want to use my mac for mule, and i really like the aMule concept. thx the devs!
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HipHopPunkSuperStar

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Re: bad performance
« Reply #17 on: January 02, 2005, 11:10:47 AM »

You're not alone  ?(
I do get the same performance problems here.
My downloads stay at 0,5 - 1,5 kB/s when they reach 1,6 or 1,7 kB/s the connection is lost.
I tried several configurations limiting Up- and Download speeds but nothing changes, people can download from my client with the full speed I allow (I tried 8-11kB/s as my upload max is ant 12 kB/s), but it doesn't change anything.

I'm downloading highly availabile files (more than 40 - 50 sources) but the dl stays that low.

I have no possibility to try on a diffrent machine, so I don't know what else I might try...

And yes, I have a HighID...

(667MHz TiBook, 768MB RAM, Mac OS X 10.3.7, latest aMule Mac-Binary version)
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clem2610

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Re: bad performance
« Reply #18 on: January 03, 2005, 10:00:23 PM »

Hi everybody.

I experience the same problems than many of you. My download rate is stuck to 0.something while the upload is near to its max value.
Here what I can add to the topic:
The problem is still valid on rc8 (t least for me)
This is not a rc7 problem as it was already the case more than one month ago (with the first compiled mac version I download)
Sometimes the download rate can rise quite high (22kb/s) but it never lasts long and most of the time my average download rate is between 0.5 and 1.5.

I understand that the problem could be hard to solve as the developpers don't experience it. But couldn't we make some test ? Let the developpers share a big file and try to see what happens when problematics amule connect to them ?


C.
« Last Edit: January 03, 2005, 10:01:36 PM by clem2610 »
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dashaund

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Re: bad performance
« Reply #19 on: January 27, 2005, 12:23:33 AM »

I'm experiecing the exact same issues.  I get PLENTY of sources, can upload all day very efficiently (20kb/s...my limit) but the downloads trickle.  I use eDonkey 2000 and get around 30+ kbs download (my limit is 200kb/s, but I'm happy with 30).  So, that proves its not my ISP or my computer...its the software.  I think the developers should find some Macs (heck, the'yre only $499 now) and try to figure this one out.  I can't use the latest CVS (yet) because I can't ge t it to compile.  That's another issue though.  Please!  I love the whole aMule open-source concept, and it is a better client...and I want to USE it!
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HipHopPunkSuperStar

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Re: bad performance
« Reply #20 on: January 31, 2005, 03:21:00 PM »

Okay, I can now somehow confirm that the bad speeds most of us are experiencing with aMule under Mac OS X is somehow a Mac problem!
I installed Ubuntu-Linux on my PowerBook the other day and have now aMule runnig form there, I copied my .aMule folder over to the Linux machine and the speed goes WOOOOH ?( 8o
This is to say, the same files I was trying to download a couple of days on my Mac running OS X, which all together came down with a max. speed of 2kB/s now give me an overall Down-Speed of 20-30kB/s.

I have NO idea why this happens, but I can observe it right in front of my nose!
I am SURE as hell, that I have all ports open on my Mac (I'm using NetBarrier as my firewall and have them explicedly OPEN & I also get high IDs on the ED2K-Servers).
Changing aMule to my PowerBook running Ubuntu I changed the Port-Forwarding to the new IP, so this is also the same, and as I copied the whole .aMule folder my shares and credits are the same aswell.

So, maybe someone should again take a closer look at this...
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dashaund

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Re: bad performance
« Reply #21 on: January 31, 2005, 05:21:00 PM »

My post earlier was a little too "critical."  After reading it over, I got the impression that I was criticizing the developers and accusing them of not caring about us Mac people, which it totally wrong.  Sowwy!  Anyways, I'm willing to assist in testing of whatever changes they decide to make.  I love the aMule client.  After I finish downloading something in eDonkey, I load up aMule to share it.  It's not simply a client issue (since it runs well on other platforms), and its not an OS issue (since other clients of the same network run well)...it's a combination.  I'm not a developer myself, so it might be a wxMac issue!  Either way, I'd love to figure it out myself, but I'm no developer/programmer.  So, would someone PLEASE help in getting this issue resolved!
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Kry

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Re: bad performance
« Reply #22 on: January 31, 2005, 05:45:01 PM »

Well, notice that as good as Mac might be, I doubt it has the same network behaviour as linux, which is used in servers all over the world.

Why do I mention this? Mainly because if you take my current aMule config on linux and apply it to windows, either eMule, or windows, or both, go down.


So, try tweaking things a bit. Key places:

Max sources per file

Max connections

->Core Tweak tab:

Max connections/5secs

Safe max connections (or whatever is called). This should be ON.



Please, report results, I want to know if it's a wxMac issue and why :)


P.S: No,I'm not comparing Windows to Mac ;)

P.P.S: I did not take your post as rude in any way, no apologies needed  8)
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lionel77

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Re: bad performance
« Reply #23 on: January 31, 2005, 10:16:31 PM »

concerning the linux<->os x comparison: os x is based on bsd which is used to run some mighty big ass servers as well, so i highly doubt that it's the os itself that is causing the problems... ;)

Quote
Originally posted by Kry
So, try tweaking things a bit. Key places:
Max sources per file
Max connections
->Core Tweak tab:
Max connections/5secs
Safe max connections (or whatever is called). This should be ON.
i've tried playing with these settings before and i didn't see huge effects. i'm now running amule with really conservative settings. when i was using mldonkey i was using 4x as many max connections, connections per second, etc. and never had similar problems.
so i fear it really looks like a wxMac issue.

they key problem seems to be that most connections are dying after about a minute or so. maybe the best thing to do would be to create a test scenario, in which one person shares only one file and another person tries to download this. if the first person logs the communication between the two clients, maybe we can see what causes the connection to break.
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Current aMule CVS builds for OS X can be found here.

m2kio

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Re: bad performance
« Reply #24 on: February 08, 2005, 02:01:18 PM »

Quote
Originally posted by lionel77

Quote
Originally posted by Kry
So, try tweaking things a bit. Key places:
Max sources per file
Max connections
->Core Tweak tab:
Max connections/5secs
Safe max connections (or whatever is called). This should be ON.

i've tried playing with these settings before and i didn't see huge effects. i'm now running amule with really conservative settings. when i was using mldonkey i was using 4x as many max connections, connections per second, etc. and never had similar problems.
so i fear it really looks like a wxMac issue.

they key problem seems to be that most connections are dying after about a minute or so. maybe the best thing to do would be to create a test scenario, in which one person shares only one file and another person tries to download this. if the first person logs the communication between the two clients, maybe we can see what causes the connection to break.

i'm also pretty shure that the problem lies within wxMac...
the best suggestion i can make is to limit the max. connections to 100 (or 95, gives a better scaled graph in the stats window ;-) ) more is not required and just blocks the line.
Just to say, my up/dn ratio is also poor. amule just ran for 7 days (!) before i restarted it today, and i had a ul/dl ratio of 3.62 : 1.
same symptom here: dl frequently does not start up, dies shortly after start, has very poor speed (e.g. 0.2kB/s). But it seems to improve over time running, or at least the poor dl's sum up. And there are also good conenctions too. Of course. Else amule wouldn't be usable.
It seems to be even worse on my iBook, and sometimes i have the impression it is a timing issue.
this opinion also arised from some other observation: in rc7 (rc8 seems to be different now) i had to restart amule once a day and when i started it, it failed on each and every server it tried, i stopped it, started it again and then in most times it logged into the first server it tried. (not always.  :( sometimes resisted very hardly.)

maybe it would be helpful to have a special logging version of amule which dumps out stats on every succeeded and failed connection. (does prefs>core tweaks>verbose s.th. like that?)
Maybe a POST to a http server which runs a stats accumulating script? (as a option, of course)

     ... m2kio !
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ken

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Re: bad performance
« Reply #25 on: February 08, 2005, 04:54:28 PM »

Guys, try a new CVS snapshot.  See this thread.
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m2kio

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2005-02-08 snapshot: low ID
« Reply #26 on: February 08, 2005, 05:44:30 PM »

hi,

with the feb-08 snapshot i always get low ID.
EDIT: not always, but very often (3 out of 4 times approx.).

server connect is 'instant' now, thanks.  :)
EDIT: exept if i'm going to get a low ID. X(

    ... m2kio !
« Last Edit: February 08, 2005, 06:04:37 PM by m2kio »
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Slist

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Problem persists
« Reply #27 on: February 10, 2005, 09:48:43 AM »

Hello,

the problem still persists, even with aMule-Mac.cvs2005-02-09.unicode.debug.zip
I don't know.. I am really tempted to go back to mldonkey.
adonkey finds a lot of sources but the download is muuutch slower (normally around
0-0.7, where mldonkey downloads at full speed).

Slist
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m2kio

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Re: bad performance
« Reply #28 on: February 10, 2005, 01:49:37 PM »

just an update:

cvs 02-08 seems to handle high bandwidth dl better. it seems that dl with 20kB/s++ more reliably delivers complete blocks. overall dl ratio seems to be better (2.5:1 after 1.5days) but that may also be just luck. dl from roughly 50% of peers still dripling/failing/starving early.

cvs 02-10 still tends to low id. especially razorback always gives me a low id. (i'm behind a router with ip forwarding.)

also noticed since ++rc8:
bogus coloring of dl progress bars fixed. :)
"hidden" files no longer shared. thanks! :)

    ... m2kio !
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dashaund

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Re: bad performance
« Reply #29 on: February 10, 2005, 04:41:19 PM »

Unfortunately, the problem persists.  I've tried the premade binary posted here, and compiled the 2-10 CVS, and neither one works better.  I think it has gotten a little better, though.  I've downloaded a whopping 18MB in 14hrs with plenty of sources.
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