Search Again: Re: Capacity From: Jerry Pasker-Systems Admin. Date: Friday, November 5, 1999 Time: 4:16:00 pm >I am about to transfer control of a million hit per month domain over to >my DNS. Currently, I am running 2.1 on a 7500 (OS 8.1) with 96M of >which 45 has been allocated to QDNS. > >This addition will take my DNS to almost 2.5 millions hits per month. >So after much ado, the question is: Can a 7500 handle this type of load? >If not, what would be the minimum recommended machine that you would >use. > >TIA, >Steve That's a very good question. I've asked it several times, and have never really gotten a solid response. I know that there is a "Zen" of QDNS Pro, when it comes to setting the RAM on different machines. I've been running my primary on a 6220 CD, (75Mhz 603, and the slowest PowerMac ever made) with 24MB of RAM (12 allocated to QDNS Pro 2.2.1) and have found that under a pretty good load (3-10 quirries per seccond) less RAM is better than more RAM. I'm only assuming that it's faster to search 1.5MB of cached records, and then resolve a name using an external server(s) than it is to sort through 11.5MB of cached records. I'm sure there has to be a guideline to setting RAM on different speeds of machines. Or is more allways better? Can anyone clarify this? Here's a good question for the DNS gods..... why is a zone transfer faster from a 25Mhz Performa 600 (2MB allocated to QDNS Pro) (250+ records, 500ms) than the 75Mhz Performa 6220 (same 250+ records 2200+ ms) Performa 600- 2MB allocated to QDNS Pro, 250+ records transfered in ~500ms Performa 6220 12MB allocated to QDNS Pro, same 250+ records transfered in ~2300ms So, I append this question, and ask the list: What are QDNS Pro's upper limits in terms of resolving DNS quiires? -Jerry

Messages In This Thread: Capacity by Steve Dannaway on Nov 5, 1999 at 3:30:00 pm Re: Capacity by Jerry Pasker-Systems Admin. on Nov 5, 1999 at 4:16:00 pm Re: Capacity by andrew kagan on Nov 5, 1999 at 4:23:00 pm Re: Capacity by Jerry Pasker-Systems Admin. on Nov 5, 1999 at 4:23:00 pm Re: Capacity by andrew kagan on Nov 5, 1999 at 4:37:00 pm Re: Capacity by andrew kagan on Nov 5, 1999 at 4:41:00 pm Re: Capacity by Jerry Pasker-Systems Admin. on Nov 5, 1999 at 4:58:00 pm Re: Capacity by andrew kagan on Nov 5, 1999 at 5:29:00 pm Re: Capacity by Jerry Pasker-Systems Admin. on Nov 5, 1999 at 10:09:00 pm Re: Capacity by Men & Mice Support on Nov 5, 1999 at 10:59:00 pm Re: Capacity by Warren Michelsen on Nov 6, 1999 at 12:05:00 am Re: Capacity by Jerry Pasker-Systems Admin. on Nov 6, 1999 at 12:45:00 am