[pptp-server] Speed/performance problems with v0.9.10 and 98

[Rick Matlock]

This worked for me on v0.9.5!!!   I have no idea because 0.9.4 had the
same problems as the .9.10, but changing that in 0.9.10 worked great.

  Thanks for your help

     Rick

-----Original Message-----
From: Philip Van Baren [mailto:phil at vibrationresearch.com]
Sent: Friday, August 06, 1999 6:32 PM
To: pptp-server at lists.schulte.org
Cc: matthewr at moreton.com.au; David Luyer; Rick Matlock
Subject: RE: [pptp-server] Speed/performance problems with v0.9.10 and
98 


I found what caused my performance decrease:
  in 0.9.5 the PCKT_RECV_WINDOW_SIZE was changed to 1 (was 2 in 0.9.4)

Bumping that value back up to 2 in the source for version 0.9.10 fixes
my
performance problem.

Phil VanBaren


> That's interesting.  Can you positively verify a decrease in
performance
> between 0.9.4 and 0.9.5?  0.9.5 fixes some important bugs.
>
> If there is definitely a performance decrease there, try backing out
the
> changes one by one and find which one caused it.
>
> The first two to try backing out would be the specific GRE bind() and
the
> sequence number checking change.
>
> Is your pptpd logging anything on the server, eg, heaps of
out-of-order
> packets?
>
> David.
>


--- pptpd-0.9.10/pptpdefs.h     Mon Aug  2 19:25:10 1999
+++ pptpd-0.9.10-new/pptpdefs.h Fri Aug  6 21:13:25 1999
@@ -90,7 +90,7 @@
 #define MAX_CHANNELS                   0x0001

 /* Out Call Reply Defines */
-#define PCKT_RECV_WINDOW_SIZE          0x0001
+#define PCKT_RECV_WINDOW_SIZE          0x0002
 #define PCKT_PROCESS_DELAY             0x0000
 #define CHANNEL_ID                     0x00000000


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