Which OS / processor / memory are you running Edward ? Which network type ? Ethernet/speed, etc. Does the machine have an non-zope ftp server on it? If you use that do you get the same results? I find the 100% cpu spike even stranger than slow performance... (but that's just me ;) ) ----- Original Message ----- From: "Edward Pollard" <pollej@uleth.ca> To: "Bobb" <rawbobb@hotmail.com> Cc: <zope@zope.org> Sent: Wednesday, February 25, 2004 3:21 PM Subject: Re: [Zope] Zope 2.7 FTP Bandwidth Limiter? Indeed we still only get 10k/sec via ftp to localhost. It is worth noting that FTP upload is full-speed. Also noteworthy is that the CPU on this box is going to 100% when I download via FTP (45% user/55% system). This problem is exhibited, pretty much identically, in Zope 2.6.4 and 2.7. Zope 2.6.2 seems to have critical bugs in its FTP implementation, which means I needed to be off of it yesterday. • Dieter does not have this problem in 2.7, which may suggest that the problem is not Zope. • We are running different versions of Python (2.1 for Zope 2.6.4, 2.3.3 for Zope 2.7) for each of these servers, which may suggests it isn't a Python-related problem, unless there is something we did wrong twice. (And our 2.6.2 is running fine on Python 2.1, although it is a separate install of it than the one 2.6.4 uses). • Everything else runs at a proper transfer rate on this machine - and executing the 2.6.4 and 2.7 installs on the machine where we run 2.6.2 as a process successfully yields the same results - which may suggest that the hardware is fine. Conclusion: I got nothing. Does anyone have any thoughts at all on this subject? Ed On Feb 22, 2004, at 11:51 AM, Bobb wrote:
I'm curious what about ftp'ing locally 127.0.0.1:ftpport ? still 10k/sec?
----- Original Message ----- From: "Edward Pollard" <pollej@uleth.ca> To: <zope@zope.org> Sent: Saturday, February 21, 2004 4:20 PM Subject: [Zope] Zope 2.7 FTP Bandwidth Limiter?
We're experimenting with Zope 2.7, and are currently unable to get FTP transfers to go any faster that 10k/sec. This seems to be some sort of arbitrary limit, as we have plenty of bandwidth and horsepower available. Indeed, we can pretty much make as many FTP sessions as we want simultaneously, they just all go at 10k/sec.
Was there some sort of limiter or throttle introduced somewhere along the lines that I am unaware of?
--- Edward J. Pollard, B.Sc Webmaster, University of Lethbridge
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