Quoting Sunil Mohan Adapa (2019-04-25 21:30:03) > > > > It seems you forgot to attach the mentioned Olimex report. > > The report is in the inline section "Report from Olimex team (with > Rev.G2)". I used term 'attached' loosely.
Ahh: You _quoted_ Olimex from "Report from Olimex team (with Rev.G2)" down to and including the iperf tests on ip 192.168.0.60, and then you _appended_ tests of your own for a rev.C board on ip 10.42.1.1. > > Do I understand you correctly that the attached patch is what Olimex > > propose but that you do *not* recommended to use it as-is because it > > badly affects older boards? > > Olimex has kindly provided us the patch so that we can create a fully > working u-boot build for Lime2 Rev.G2 board. They did not imply that > the patch was suitable for other boards as well. Understood (now). Thanks. > > Were your Lime2 boards connected with a cross-over cable or via a > > switch during those tests? > > Lime2 was connected to a laptop via a cross-over cable (actually > regular cable but the hardware actually detects cross-over setup and > automatically swaps TX/RX). Thanks. Makes good sense to me now (sorry for being dense). So a summary of the tests is this: Board, cable mode, patchset \ Measured speed in Mbit/sec rev.G2 1Gbit mode pristine: 14 & 722 rev.G2 1Gbit mode TX_DELAY=4: 428 & 774 rev.C 1Gbit pristine: 1 & 526 rev.C 100Mbit pristine: 94 & 94 rev.C 1Gbit TX_DELAY=4: 61 & 141 rev.C 100Mbit TX_DELAY=4: 89 & 89 Would be good to have tests explicitly in master vs. slave mode. Would be good to have tests with TX_DELAY=2 and TX_DELAY=3 (the former seems to be what Olimex set themselves for rev.G, and the latter is what some u-boot hacker has noted as working on linux-sunxi wiki). Would be good to have tests for rev.H and/or rev. K board (to understand if changes cause regressions on that board - yes I am aware that some FreedomBox reports indicate that board being broken too but we desperately need detailed knowledge on that filed in the Debian BTS!). - Jonas -- * Jonas Smedegaard - idealist & Internet-arkitekt * Tlf.: +45 40843136 Website: http://dr.jones.dk/ [x] quote me freely [ ] ask before reusing [ ] keep private
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