Re: Serious performance degradation in Linux 4.15

2018-02-16 Thread Matt Fleming
On Wed, 14 Feb, at 10:46:20PM, Matt Fleming wrote: > On Mon, 12 Feb, at 04:16:42PM, Peter Zijlstra wrote: > > On Fri, Feb 09, 2018 at 05:59:12PM +, Jon Maloy wrote: > > > Command for TCP: > > > "netperf TCP_STREAM (netperf -n 4 -f m -c 4 -C 4 -P 1 -H 10.0.0.1

Re: Serious performance degradation in Linux 4.15

2018-02-14 Thread Matt Fleming
On Mon, 12 Feb, at 04:16:42PM, Peter Zijlstra wrote: > On Fri, Feb 09, 2018 at 05:59:12PM +, Jon Maloy wrote: > > Command for TCP: > > "netperf TCP_STREAM (netperf -n 4 -f m -c 4 -C 4 -P 1 -H 10.0.0.1 -t > > TCP_STREAM -l 10 -- -O THROUGHPUT)" > > Command for TIPC: > > "netperf TIPC_STREAM (n