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This is why I prefer to run linux locally rather than rely on Temple - Chaz Meyers [entries|archive|friends|userinfo]
Chaz Meyers

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This is why I prefer to run linux locally rather than rely on Temple [Feb. 9th, 2004|04:33 pm]
Chaz Meyers
Traceroutes within Temple's network.
C:\Documents and Settings\cmeyers>tracert yoda.cis.temple.edu

Tracing route to yoda.cis.temple.edu [155.247.177.207]
over a maximum of 30 hops:

  1     1 ms     1 ms     1 ms  155.247.220.1
  2     1 ms     1 ms     1 ms  155.247.9.6
  3     4 ms     2 ms     2 ms  155.247.9.6
  4     *        *        *     Request timed out.
  5     *        *        *     Request timed out.
  6     *        *        *     Request timed out.
  7     *       48 ms     *     yoda.cis.temple.edu [155.247.177.207]
  8     *        *        *     Request timed out.
  9     *        *        *     Request timed out.
 10     *        *        *     Request timed out.
 11     *       47 ms     *     yoda.cis.temple.edu [155.247.177.207]
 12     *      156 ms   192 ms  yoda.cis.temple.edu [155.247.177.207]

Trace complete.


C:\Documents and Settings\cmeyers>tracert lucas.cis.temple.edu

Tracing route to lucas.cis.temple.edu [155.247.177.205]
over a maximum of 30 hops:

  1     1 ms     1 ms     1 ms  155.247.220.1
  2     1 ms     1 ms     1 ms  155.247.9.6
  3     5 ms     2 ms     2 ms  155.247.8.181
  4    80 ms   100 ms   185 ms  lucas.cis.temple.edu [155.247.177.205]

Trace complete.



This is compared to a traceroute of www.temple.edu
C:\Documents and Settings\cmeyers>tracert www.temple.edu

Tracing route to www.ocis.temple.edu [155.247.166.60]
over a maximum of 30 hops:

  1     1 ms     1 ms     1 ms  155.247.220.1
  2     2 ms     1 ms     1 ms  155.247.9.4
  3     1 ms     1 ms     1 ms  www.ocis.temple.edu [155.247.166.60]

Trace complete.



So, it's clearly not a problem with Temple's connection to the outside world. Those machines are just THAT SLOW. Blah. They're that bad even when you're in the lab, since the people remotely connecting are using the same machines that people are sitting at.

This is crazy. I just timed out that there's something between 1 and 5 minutes latency between when I type my command and when it displays on my terminal.

It's the Latency, Stupid. This is completely unrelated to the rest of this post, but I thought it was an interesting rant. You probably won't. :-P I wonder how good modern DSL/Cable modems are in that respect, nowadays. The paper was written in 1996.

djrust, weren't you supposed to show me a paper on why Java is so slow?

Hm. 10 minutes of work left. I was going to design some classes to make my forms project easier, but I guess that'll be exnayed. :-P

Ah, good! gmake and ./lab1 finally finished. My program is producing the same output. Given my luck with this not too complicated lab, it is entirely likely that when fed another graph it will display a small elephant. However, for this graph, I have success so I can sleep a happy person.

It's amazing how slow these Solaris machines are. I think they just got them last semester or so. Maybe it's because they have X11 forwarding turned on. Or, maybe because they don't have the "automatically pop you over to another host when you ssh in" mechanism they have set up on lucas. The more I use the system, the more it feels like we're all connecting to one server and all the machines in the lab are just dumb clients. However, who(1) makes me think otherwise.


[c307217@yoda lab1]$ who
c307207    pts/6        Feb  9 16:21    (astro.temple.edu)
c307218    pts/1        Feb  9 16:55    (peppy.cis.temple.edu)
root       console      Oct 21 15:15
c307217    pts/5        Feb  9 15:40    (td01487.dental.temple.edu)
ikoniak    pts/7        Feb  6 13:44    (snowhite.cis.temple.edu)
c307102    pts/2        Feb  9 16:56    (tt-w211-2.dorm.temple.edu)



Compare that to astro:

[astro] ~ % who
ebsmith     pts/0       Feb  9 17:14
paustin     pts/2       Feb  9 10:34
lane        pts/3       Feb  9 08:17
plowden     pts/4       Feb  9 17:06
stan        pts/5       Feb  9 08:18
ykwon       pts/7       Feb  9 08:59
hayner      pts/8       Feb  9 08:23
jwne        pts/9       Feb  9 16:46
hayner80    pts/10      Feb  9 08:31
noone       pts/11      Feb  9 17:23
dvb         pts/12      Feb  9 16:36
jgilboy     pts/13      Feb  9 17:16
gabi        pts/14      Feb  9 11:58
bezanis     pts/15      Feb  9 13:59
mdavis10    pts/16      Feb  9 15:39
junwen      pts/17      Feb  9 09:07
emohamme    pts/18      Feb  9 16:53
semnr20     pts/19      Feb  9 17:24
stan        pts/20      Feb  9 09:54
ccolvard    pts/21      Feb  9 09:11
rjlevis     pts/24      Feb  9 15:22
rayad       pts/25      Feb  9 13:28
hayner      pts/26      Feb  9 17:07
mldarby     pts/27      Feb  9 17:01
swansonc    pts/29      Feb  9 16:11
bezzam      pts/30      Feb  9 09:28
smatsika    pts/32      Feb  9 14:02
penny       pts/33      Feb  9 15:18
wenwen      pts/35      Feb  9 16:14
jnutt       pts/36      Feb  9 16:25
ehlee       pts/39      Feb  9 16:36
ehlee       pts/37      Feb  9 16:41
music       pts/42      Feb  9 11:58
sorrento    pts/43      Feb  9 13:31
jsorrent    pts/44      Feb  9 13:37
penny       pts/45      Feb  9 13:15
colon       pts/46      Feb  9 15:13
meyers      pts/50      Feb  9 15:28
jmulik      pts/52      Feb  9 13:45
strawbr     pts/53      Feb  9 13:46
jwne        pts/54      Feb  9 13:46
walter      pts/56      Feb  9 13:48



Astro is fast. Very fast. On the other hand, astro has all the fun toys turned off. Like.. uh.. less(1). :-P

Um. Yeah. I seriously doubt anyone's read this far, and I don't need to kill any more time, so I'm going to stop writing now.
LinkReply

Comments:
[User Picture]From: calophi
2004-02-09 03:14 pm (UTC)
This post has baffeled me almost as much as Bwbohh's posts do...
(Reply) (Thread)
[User Picture]From: cpm
2004-02-09 03:56 pm (UTC)

Re:

Almost? Damn. I need to work harder, then. ;)
(Reply) (Parent) (Thread)
[User Picture]From: finnell1912
2004-02-12 09:31 am (UTC)

Re:

Wow, I must have learned something then because I understood the greater majority of this post.
(Reply) (Parent) (Thread)