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soc:2010:andreif:journal:week4 [2010/06/18 10:51]
andreif
soc:2010:andreif:journal:week4 [2010/06/20 12:27] (current)
andreif
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 ==== Day 5 [ Fri 18 Jun 2010 ] ==== ==== Day 5 [ Fri 18 Jun 2010 ] ====
 +
 +Git commit: [[http://​git.etherboot.org/?​p=people/​andreif/​gpxe.git;​a=commit;​h=479f777706bb4c64f9a244846f7d63bdf1c47ae7|479f777706bb4c64f9a244846f7d63bdf1c47ae7]]
  
 After making the pcnet32 modifications I decided to test it again, on all three vms: VMWare, VBox and Qemu. I realised then that I haven'​t been testing the driver as thoroughly as I should have. The following table shows the results I get after downloading an 100mb image five times in a row. The results are the following: After making the pcnet32 modifications I decided to test it again, on all three vms: VMWare, VBox and Qemu. I realised then that I haven'​t been testing the driver as thoroughly as I should have. The following table shows the results I get after downloading an 100mb image five times in a row. The results are the following:
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 VBOX VBOX
 {{:​soc:​2010:​andreif:​journal:​vboxcap.png?​1000| Virtual Box capture}} {{:​soc:​2010:​andreif:​journal:​vboxcap.png?​1000| Virtual Box capture}}
- 
  
 Note to self: Try Guo-Fu'​s TCP patch, that might improve things in VBox. Note to self: Try Guo-Fu'​s TCP patch, that might improve things in VBox.
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 Someone should really make a test suite for drivers. Perhaps this would be a good first script. Someone should really make a test suite for drivers. Perhaps this would be a good first script.
 +
 +Tomorrow TODO: Finish patch, leave init_block like it was before, return error when MAC address is not valid. Post some details in the patch description,​ perhaps comparison against the old driver.
 +
 +==== Day 6 [ Sat 19 Jun 2010 ] ====
 +
 +I finished the pcnet32 patch today and I uploaded version 2 of the patch. Hopefully, people will find it ok. Stefan reports some results in KVM and apparently disabling the BIOS console yields some definitive speed improvements which I will have to test too in VBox.
 +
 +I also received a response from one of the forcedeth driver devs and it was awesome that he took some time to write me back. The forcedeth driver writing will mostly be a direct port of the Linux one.
 +
 +Another small project rose up today, I have to find out why gPXE is so slow in VBox. I don't know yet if the BIOS thing is causing it, but I will find out these days.
 +
 +==== Day 7 [ Sun 20 Jun 2010 ] ====
 +
 +Version 3 of the patch is up. At this rate, I will probably hold the record for most revisions of a patch :). Also sent an email to Andrew de Quincey regarding forcedeth documentation.

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