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Ticket Resolution Summary Owner Reporter
#71 fixed Performance of over a (Open)VPN is terribly slow Herwig Bauernfeind
Description

When running Samba connections over a VPN connection (using OpenVPN for OS/2 by Pavel Shtemenko from hobbes on both sides), transfer speed is really slow.

The tests were done on the same connection within 10 minutes:

  • Transfer speed using Netdrive/ndpsmb: 1,5 to 3,0 KB/s
  • Transfer speed using smbclient.exe: 30,0 to 50,0 KB/s
  • Transfer speed using FTP: 30,0 to 50,0 KB/s

smbclient.exe is Version 3.0.33 (but that does not matter most likely). I will attach logfiles later.

#72 duplicate login slow with new os2_randget() in os2ea.c Paul Smedley Herwig Bauernfeind
Description

The new os2_randget() function os2ea.c slows down login (and possibly other operations) considerably.

For each login the randbyte_hrtimer() subroutine is executed exactly 129 times, a DosSleep?(5) occurs for every execution, this sums up to a delay of almost 0,7 secs per login.

#73 fixed login slow with new os2_randget() in os2ea.c Herwig Bauernfeind Herwig Bauernfeind
Description

The new os2_randget() function in os2ea.c slows down login (and possibly other operations) considerably.

For each login the randbyte_hrtimer() subroutine is executed exactly 129 times, a DosSleep?(5) occurs for every execution, this sums up to a delay of almost 0,7 secs per login.

My suggestion as a fix would be to remove the randbyte_hrtimer() portion completely (reducing DosSleep?(5) to DosSleep?(1) is better, but still slow) as randbyte_hrtimer() is only one of 3 components and the remaining randbyte_sysinfo() and randbyte_perf() still provide more "randomness" than what was available before Changeset #160 and the resulting login speed is perfectly acceptable this way.

An appropriate unified dif is attached.

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