That did it. Everything seams to be running fast! Kent, this saved my
hide! Thank you...
On 9/19/07, Kent Peacock <[EMAIL PROTECTED]> wrote:
> Bob Doolittle wrote On 09/19/07 09:12,:
> > Do you have a lot of sessions displaying yuv icons for some reason?
> > e.g. a card-only or pseudo-only policy, a lot of unrecognizable
> > smartcards inserted, a lot of token readers configured, or a lot of
> > multihead sessions where the primary isn't currently connected?
> >
> > The data indicating yuvfile problems is pretty sketchy at this point
> > and the problem is still under investigation. yuvfile never sends much
> > data, but if you have zillions of them running it's possible there
> > is an issue here.
>
> Actually, it's not sketchy at all. I just took a look at a trace from
> Cards, and for each DTU, I see a continuous stream of N_SET_CURSOR
> commands (every 10 ms) for 2 DTUs in the trace. The signature of the
> command is such that it can only be coming from this function in yuvfile.c:
>
> static void
> send_cursor(nv_t nv)
> {
> unsigned char image[8*64];
> unsigned char mask[8*64];
> int color1 = 0;
> int color2 = 0;
>
> memset(image, 0, sizeof (image));
> memset(mask, 0, sizeof (mask));
>
> if (strcmp(setcursor, "null") != 0) {
> /* read cursor definition file goes here */
> fprintf(stderr, "%s: Cursor files are unimplemented\n",
> opt_progname);
> exit(2);
> }
>
> nv_set_cursor(nv, color1, color2, image, mask);
> }
>
> In other words, it's basically a blank cursor. Doing some math, at
> 1122 bytes per packet, 100 packets per second, each DTU is consuming
> about 900 Kbps of bandwidth - way more than the average when a session
> is running. It's pretty clear from looking at the main loop of the
> program that it will send the cursor every 10 ms. It's not even the
> repainting of the icon that is consuming the bandwidth.
>
> Kent
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>
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