Opened 8 years ago

Last modified 6 years ago

#7853 new Bug report

Multiple FTP Transfers and Speed Limits.

Reported by: T.K. Backman Owned by:
Priority: normal Component: FileZilla Client
Keywords: Cc:
Component version: Operating system type: Windows
Operating system version: Win 7 64-bit SP1

Description

I routinely start 6-8 long parallel file transfers from my ONE host to my local PC. In general this works very well, including respecting any up/down speed limits that I set. However, there is one specific case where this breaks down.

The transfers seem to "set max their speed" when they are started, some are slow, some are fast. The first ones that start usually run very fast, the others usually end up going much slower.

The problem being that after the fast ones finish first, the slow ones do use the extra bandwidth and continue running as slowly as if there were other fast transfers still present.

This means the slower transfers take a VERY long time to finish even though there is plenty of unused bandwidth available. They never increase their speed up to the speed limit once the other transfers complete.

All of the active transfers should adjust up to use available bandwidth equally, and dynamically increase/decrease speed as transfers come/go.

Attachments (1)

MultipleTransferBandwidth.PNG (57.7 KB) - added by T.K. Backman 8 years ago.
Some transfers run slow / take forever, and never speed up when there is bandwidth.

Download all attachments as: .zip

Change History (2)

Changed 8 years ago by T.K. Backman

Some transfers run slow / take forever, and never speed up when there is bandwidth.

comment:1 Changed 8 years ago by T.K. Backman

"The problem being that after the fast ones finish first, the slow ones do NOT use the extra bandwidth and continue running as slowly as if there were other fast transfers still present." (added "NOT" for clarity).

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