Network Throughput Problem...
Hey all I'm using netperf to perform TCP throughput tests via the localhost interface. This is being done on a SMP machine. I'm forcing the netperf server and client to run on the same core. However, for any packet sizes below 523 the throughput is much lower compared to the throughput when the packet sizes are greater than 524. Recv SendSend Utilization Service Demand Socket Socket Message Elapsed Send Recv SendRecv Size SizeSize Time Throughput localremote local remote bytes bytes bytessecs.MBytes /s % S % S us/KB us/KB 65536 6553652330.0181.49 50.0050.0011.984 11.984 65536 6553652430.01 460.61 49.9949.992.120 2.120 The chances are i'm being stupid and there is an obvious reason for this, but when i put the server and client on different cores i don't see this effect. Any help explaining this will be greatly appreciated. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [RFD] iptables: mangle table obsoletes filter table
Hey all I'm using netperf to perform TCP throughput tests via the localhost interface. This is being done on a SMP machine. I'm forcing the netperf server and client to run on the same core. However, for any packet sizes below 523 the throughput is much lower compared to the throughput when the packet sizes are greater than 524. Recv SendSend Utilization Service Demand Socket Socket Message Elapsed Send Recv SendRecv Size SizeSize Time Throughput localremote local remote bytes bytes bytessecs.MBytes /s % S % S us/KB us/KB 65536 6553652330.0181.49 50.0050.0011.984 11.984 65536 6553652430.01 460.61 49.9949.992.120 2.120 The chances are i'm being stupid and there is an obvious reason for this, but when i put the server and client on different cores i don't see this effect. Any help explaining this will be greatly appreciated. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [RFD] iptables: mangle table obsoletes filter table
Hey all I'm using netperf to perform TCP throughput tests via the localhost interface. This is being done on a SMP machine. I'm forcing the netperf server and client to run on the same core. However, for any packet sizes below 523 the throughput is much lower compared to the throughput when the packet sizes are greater than 524. Recv SendSend Utilization Service Demand Socket Socket Message Elapsed Send Recv SendRecv Size SizeSize Time Throughput localremote local remote bytes bytes bytessecs.MBytes /s % S % S us/KB us/KB 65536 6553652330.0181.49 50.0050.0011.984 11.984 65536 6553652430.01 460.61 49.9949.992.120 2.120 The chances are i'm being stupid and there is an obvious reason for this, but when i put the server and client on different cores i don't see this effect. Any help explaining this will be greatly appreciated. - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Network Throughput Problem...
Hey all I'm using netperf to perform TCP throughput tests via the localhost interface. This is being done on a SMP machine. I'm forcing the netperf server and client to run on the same core. However, for any packet sizes below 523 the throughput is much lower compared to the throughput when the packet sizes are greater than 524. Recv SendSend Utilization Service Demand Socket Socket Message Elapsed Send Recv SendRecv Size SizeSize Time Throughput localremote local remote bytes bytes bytessecs.MBytes /s % S % S us/KB us/KB 65536 6553652330.0181.49 50.0050.0011.984 11.984 65536 6553652430.01 460.61 49.9949.992.120 2.120 The chances are i'm being stupid and there is an obvious reason for this, but when i put the server and client on different cores i don't see this effect. Any help explaining this will be greatly appreciated. - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
