Re: [Dnsmasq-discuss] Slow DHCP Performance with 7500 Static Reservations

2011-06-15 Thread Ed W
On 15/06/2011 09:29, Simon Kelley wrote: > Jan's valgrind suggestion is a good one, as is using netstat to look at > the size of socket receive queues. Although if he can show that a rack reboot works with 200 leases and not in an identical setup with 7,000 leases then it might point to the softwa

Re: [Dnsmasq-discuss] Slow DHCP Performance with 7500 Static Reservations

2011-06-15 Thread Simon Kelley
Mike Ruiz wrote: > Hello All, > > We use dnsmasq as a very effective replacement for the ISC software, > thus far with great success. However, we have run into occasional > performance problems at scale. > > These seem to manifest as a general slowdown of the request -> reply > process, which can

Re: [Dnsmasq-discuss] Slow DHCP Performance with 7500 Static Reservations

2011-06-14 Thread Jan Seiffert
2011/6/14 Mike Ruiz : > Hello All, > We use dnsmasq as a very effective replacement for the ISC software, thus > far with great success. However, we have run into occasional performance > problems at scale. > These seem to manifest as a general slowdown of the request -> reply > process, which can

[Dnsmasq-discuss] Slow DHCP Performance with 7500 Static Reservations

2011-06-14 Thread Mike Ruiz
Hello All, We use dnsmasq as a very effective replacement for the ISC software, thus far with great success. However, we have run into occasional performance problems at scale. These seem to manifest as a general slowdown of the request -> reply process, which can sometimes exceed 90 seconds f