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14 <H1>[IRCServices Coding] Cygnus</H1>
15 <B>Trevor Talbot</B>
16 <A HREF="mailto:ircservices-coding%40ircservices.za.net?Subject=%5BIRCServices%20Coding%5D%20Cygnus&In-Reply-To=002201c1e1a5%2433845ad0%240200000a%40stormkeepers.com"
17 TITLE="[IRCServices Coding] Cygnus">quension at softhome.net
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19 <I>Thu Apr 11 18:57:29 PDT 2002</I>
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34 <PRE>On Thursday, April 11, 2002, at 03:06 PM, Kelmar K. Firesun wrote:
35
36 &gt;&gt;<i> &lt;<A HREF="http://www.ircservices.za.net/mailman/listinfo/ircservices-coding">griever at t2n.org</A>&gt;:
37 </I>&gt;&gt;&gt;&gt;<i> I still haven't heard of a _real_ network with 100k
38 </I>&gt;&gt;&gt;&gt;<i> users, but even
39 </I>&gt;&gt;&gt;<i>
40 </I>&gt;&gt;&gt;<i> You've never heard of dalnet?
41 </I>&gt;&gt;<i>
42 </I>&gt;&gt;<i> I wasn't aware they had 100k simultaneous users, but then
43 </I>&gt;&gt;<i> I haven't
44 </I>&gt;&gt;<i> gone there in a while.
45 </I>&gt;<i>
46 </I>&gt;<i> Current local users: 10288 Max: 25358
47 </I>&gt;<i> Current global users: 120185 Max: 135705
48 </I>&gt;<i>
49 </I>&gt;<i> I don't think you'd want to go back to Dalnet anytime soon:
50 </I>&gt;<i> -twisted.ma.us.dal.net- *** Autokilled for [exp/ident] Enable
51 </I>&gt;<i> ident in your
52 </I>&gt;<i> client. Send email to <A HREF="http://www.ircservices.za.net/mailman/listinfo/ircservices-coding">exploits at dal.net</A> with a subject of
53 </I>&gt;<i> [exp/ident] for
54 </I>&gt;<i> more
55 </I>&gt;<i> details. [AKILL ID:969137152K-a] (2002/04/11 14.58)
56 </I>&gt;<i>
57 </I>&gt;<i> *Tries not to go on tirade about how using IDENT for security is a Bad
58 </I>&gt;<i> Idea(tm)*
59 </I>
60 Don't worry; it's not being used for security.
61
62 &gt;&gt;&gt;&gt;<i> Also, it's worth noting that Services' I/O engine has
63 </I>&gt;&gt;&gt;&gt;<i> been completely
64 </I>&gt;&gt;&gt;&gt;<i> redesigned for 5.0, so any comparisons done with 4.x don't count.
65 </I>&gt;&gt;&gt;&gt;<i>
66 </I>&gt;&gt;&gt;<i> Actually, if I remember correctly 5.0 was slower. May be
67 </I>&gt;&gt;&gt;<i> because of added
68 </I>&gt;&gt;&gt;<i> features
69 </I>&gt;&gt;<i>
70 </I>&gt;&gt;<i> As mentioned above, commands have more overhead (mostly
71 </I>&gt;&gt;<i> because they
72 </I>&gt;&gt;<i> use callbacks), so any comparisons done with 4.x don't count
73 </I>&gt;&gt;<i> even more.
74 </I>&gt;<i>
75 </I>&gt;<i> That and loadable modules, which would have the additional overhead of
76 </I>&gt;<i> context switching. *shudder*
77 </I>&gt;<i>
78 </I>&gt;&gt;&gt;<i> It's of point to note that both versions of ircservices sent a
79 </I>&gt;&gt;&gt;<i> lot more
80 </I>&gt;&gt;&gt;<i> to the server. Any idea what this could be?
81 </I>&gt;&gt;<i>
82 </I>&gt;&gt;<i> Because they're friendlier and want to chat with the server more?
83 </I>
84 While we're on this topic, I took a look at Cygnus' 0.0.2 socket code.
85 It appears to use a blocking socket, and I see possible issues with
86 receive buffering. Did it handle everything it was supposed to?
87
88 More details really are needed for decent comparisons.
89
90 -- Quension
91
92
93 </PRE>
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