TCP Spike

2007-09-26 Thread Majumder, Rajib
Hi, We have observed 40ms latency spikes in TCP connections in "burst" type of traffic. This affects regular TCP sockets. We observed this issue in kernels of 2.4.21 and kernel 2.6.5. Aparently, this seems to be fixed in 2.6.19. Can someone throw some light on this? Is this a congestion

TCP Spike

2007-09-26 Thread Majumder, Rajib
Hi, We have observed 40ms latency spikes in TCP connections in burst type of traffic. This affects regular TCP sockets. We observed this issue in kernels of 2.4.21 and kernel 2.6.5. Aparently, this seems to be fixed in 2.6.19. Can someone throw some light on this? Is this a congestion

RHEL 3

2007-05-03 Thread Majumder, Rajib
Hi, I am wondering if RHEL 3 (based on 2.4.21 kernel but RH claims they backported lot of 2.6 kernel's feature into it) supports Multi-Core and Hyperthreaded CPUs. Is the CPU-scheduler multi-core/hyperthreading aware? Is it aware ccNUMA multi-core CPU? Any input is appreciated. Thanks

RHEL 3

2007-05-03 Thread Majumder, Rajib
Hi, I am wondering if RHEL 3 (based on 2.4.21 kernel but RH claims they backported lot of 2.6 kernel's feature into it) supports Multi-Core and Hyperthreaded CPUs. Is the CPU-scheduler multi-core/hyperthreading aware? Is it aware ccNUMA multi-core CPU? Any input is appreciated. Thanks