Re^5: Perl on Windows Best Practices?

I can't replicate that because of my residential cable ISP.

No.     Time        Source                Destination           Protoc
+ol Info
      3 12.791678   192.168.1.112         157.56.203.150        ICMP  
+   Echo (ping) request
      4 14.956316   192.168.1.112         157.56.203.150        ICMP  
+   Echo (ping) request
      5 17.456431   192.168.1.112         157.56.203.150        TCP   
+   11975 > microsoft-ds [SYN] Seq=0 Win=16384 Len=0 MSS=1460
      6 17.456837   192.168.1.112         157.56.203.150        ICMP  
+   Echo (ping) request
      7 17.465186   10.240.176.53         192.168.1.112         ICMP  
+   Destination unreachable (Communication administratively filtered)
      8 19.956352   192.168.1.112         157.56.203.150        ICMP  
+   Echo (ping) request
      9 20.441617   192.168.1.112         157.56.203.150        TCP   
+   11975 > microsoft-ds [SYN] Seq=0 Win=16384 Len=0 MSS=1460
     13 22.456477   192.168.1.112         157.56.203.150        TCP   
+   11976 > netbios-ssn [SYN] Seq=0 Win=16384 Len=0 MSS=1460
     16 22.465609   10.240.176.53         192.168.1.112         ICMP  
+   Destination unreachable (Communication administratively filtered)
     17 25.371335   192.168.1.112         157.56.203.150        TCP   
+   11976 > netbios-ssn [SYN] Seq=0 Win=16384 Len=0 MSS=1460
     18 25.379983   10.240.176.53         192.168.1.112         ICMP  
+   Destination unreachable (Communication administratively filtered)
     19 26.376227   192.168.1.112         157.56.203.150        TCP   
+   11975 > microsoft-ds [SYN] Seq=0 Win=16384 Len=0 MSS=1460
     20 31.405568   192.168.1.112         157.56.203.150        TCP   
+   11976 > netbios-ssn [SYN] Seq=0 Win=16384 Len=0 MSS=1460
[download]

did a "net use \\live.sysinternals.com\tools" to generate the above. console says

System error 67 has occurred.

The network name cannot be found.
[download]

A residential ISP can't be blamed for blocking SMB ports.

update: Are you sure you are using SMB over the internet and not WebDAV? I turned on my Web Client service on XP, and retried to map the drive letter. I then ran

use Win32API::File 'QueryDosDevice';
print $olTargetLen = QueryDosDevice( 'W:', $osTargetPath, [] );
print "\n\n";
print $osTargetPath;
[download]

and got

74

\Device\WebDavRedirector\;W:000000000000fce5\live.sysinternals.com\too
+ls
[download]

Thats not the SMB driver. If I rerun the script on an actual local network SMB share I get

54

\Device\LanmanRedirector\;Z:000000000000fce5\removedservername\c
[download]

and LanmanRedirector is the correct driver on NT for SMB.

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Re^6: Perl on Windows Best Practices?
by BrowserUk (Patriarch) on Jul 31, 2012 at 06:12 UTC

Are you sure you are using SMB over the internet and not WebDAV?

Yes, I used WebDAV for the demo. I don't have an accessible other local machine right now. My other machine is taking a sabbatical.

But I'm pretty sure that file shared across the local LAN were cached locally going right back to NT4. The first connections were always slow; and directory listings were never cached back then, so they were also slow; but individual file metadata was cached and reopening a remote file was always quicker the second time around.

You are right about Vista/SMB2 though. Reading around, it seems to have improved things a lot through the use of bigger reads; coalesced commands and overlapped IO.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?

[reply]


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