Re: [LARTC] Bandwidth Restrictions in Linux

[Debreczeni Peter <dante@tvnet.hu>]

and why are u ask this here?
try here:

http://www.squid-cache.org/mailing-lists.html

Tushar Gupta wrote:
> Hi,
> 
> We are using squid for caching, with SCSI disk and 512 MB RAM.  The
> cache_mem setting in squid.conf is 64 MB. After running for several
> hours total free RAM (as seen by top command) reduces to few kilobytes
> and server response time increases (CPU idle cycles also go to zero),
> and we need to reboot the server. Though as percentage of total CPU
> usage squid is usually taking around 15-30%CPU and percentage of RAM as
> 12-15%MEM . After rebooting the server would again run fine for several
> hours say half a day, and then RAM would gradually get consumed again.
> 
> Any suggestions are welcome.
> 
> Thanks 
> Tushar
> 
> -----Original Message-----
> From: lartc-admin@mailman.ds9a.nl [mailto:lartc-admin@mailman.ds9a.nl]
> On Behalf Of Mathieu Deziel
> Sent: Monday, January 27, 2003 7:33 PM
> To: lartc@mailman.ds9a.nl
> Cc: robert.kryczalo@iscnet.pl; rravetti@itc.com.ar
> Subject: RE: [LARTC] Bandwidth Restrictions in Linux
> 
> 
>>Hello
>>
>>>We are ISP and we give Internet Wireless Outdoor Service . The
>>>Base Station
>>>works in 802.11b and it is connected with a Linux Mandrake Server
>>>that make
>>>NAT.
>>
>>802.11b devices are by design experiencing "hidden node" effect.
> 
> 
> "Hidden node" problem can be avoided by the use of RTS-CTS (request to
> send, clear to
> send).  RTS-CTS are optional but can be enabled.  You can also specify a
> threshold in
> the size of the packet under which RTS-CTS will not be used, in which
> case the hidden
> node problem might occur for those packets.  RTS-CTS will solve the
> hidden node
> problem, but will consume BW.
> 
> Mathieu.
> 
> 

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