I have P3, with 256 MB ram, 40 GB IDE Hard disk, I have 512kbps satellite download link,I have around 100 cable.net clients I have 600-700MB download Per Day. What cache size is recommended for my setup? another question: what will happen when cache fulls? will it delete automatically ? or how does it replace or donot cache new items?
OK, I'm wrestling with this one, too. 850 MB is what I come to using the 100 +.5 per user, yet the MCSE manual on page 216 gives an example of using 12 GB for a cache file. It says the max cache file will be 10 GB and if more is allocated to the cache then a second file up to 10 GB will be created.
We've got a Standard version P-III 1.2 GB dual processor box with 1.2 GB of RAM. There's a separate 18 GB SCSI drive for nothing but the cache and I've got a 15 GB cache allocated right now.
After a month or so, the performance monitor shows about 9 GB is allocated for the cache and the RAM used for the cache floats between 35% and 51% with 60% of free memory allocated for cache use. I upped the size of the URL stored in RAM to 15,000 bytes.
It kind of sounds like I could cut my cache size to 10 GB or less. Does anyone know if this would help performance? We see a couple of second delay sometimes before a page is returned. Can I reset the cache size lower without a reboot?
Secondly, is anyone using Active Caching and if so, do you think it makes a noticeable difference?
I used to enabled active caching until I downloaded 10 GB of stuff from CNN and FOX news in one day. Talk about agressive active caching! Now I set the Active Caching feature to "normal" and it works much better.
Compare the hard disk access speed with the speed of your connection. If you have a slow link, the disk access is going to be much faster. If you have an OC3 and you're connecting to fast servers, the the disk may be slower. There is no hard and faster rule, just a matter of trial and error based on changing the values and monitoring in your own environment.
Did you have that problem with Active Caching or Scheduled Downloads? My old memory thought it was with scheduled downloads. In any event, I think I'll try active caching in normal mode and see what happens. Take care,
Hmmm. I do recall the problems with scheduled content downloads, but there continued to be excessive proactive behavior with the Active Caching feature. I'll have to check it out again and see if I can replicate the problem.
I reset the cache from 15 Gb to 5 Gb this afternoon. All it took was a restart of the web proxy service which took about eight seconds. I'll see if I notice any difference in speed with the smaller cache.
It took about a month for it to build itself up to 11 GB of cached info which was just over one million URLs, so I'm comfortable with the change.
I have more than 5000 users and its campus area network and users are students. In computer labratories they always use internet in daytime. So how much cache space do you recommend me to set for this network