Re: [E1000-devel] Poor performance with ixgbe and E5-2643

2012-11-21 Thread Alexander Duyck
On 11/21/2012 09:18 AM, Ben Greear wrote: > On 11/21/2012 09:09 AM, Alexander Duyck wrote: >> On 11/20/2012 05:05 PM, Ben Greear wrote: >>> On 11/20/2012 04:34 PM, Ben Greear wrote: On 11/20/2012 04:18 PM, Ben Greear wrote: >>> >> Also, have you checked to make sure the feature set is comp

Re: [E1000-devel] Poor performance with ixgbe and E5-2643

2012-11-21 Thread Ben Greear
On 11/21/2012 09:09 AM, Alexander Duyck wrote: > On 11/20/2012 05:05 PM, Ben Greear wrote: >> On 11/20/2012 04:34 PM, Ben Greear wrote: >>> On 11/20/2012 04:18 PM, Ben Greear wrote: >> > Also, have you checked to make sure the feature set is comparable? > For > instance the E5 can suppo

Re: [E1000-devel] Poor performance with ixgbe and E5-2643

2012-11-21 Thread Alexander Duyck
On 11/20/2012 05:05 PM, Ben Greear wrote: > On 11/20/2012 04:34 PM, Ben Greear wrote: >> On 11/20/2012 04:18 PM, Ben Greear wrote: > Also, have you checked to make sure the feature set is comparable? For instance the E5 can support VT-d. If that is enabled it can have a negati

Re: [E1000-devel] Poor performance with ixgbe and E5-2643

2012-11-20 Thread Ben Greear
On 11/20/2012 04:34 PM, Ben Greear wrote: > On 11/20/2012 04:18 PM, Ben Greear wrote: >>> Also, have you checked to make sure the feature set is comparable? For >>> instance the E5 can support VT-d. If that is enabled it can have a >>> negative impact on I/O performance due to extra locking over

Re: [E1000-devel] Poor performance with ixgbe and E5-2643

2012-11-20 Thread Ben Greear
On 11/20/2012 04:18 PM, Ben Greear wrote: > On 11/20/2012 03:59 PM, Alexander Duyck wrote: >> On 11/20/2012 02:56 PM, Ben Greear wrote: >>> We are trying out some new hardware, but it's not able to go above about >>> 4Gbps in each direction >>> (using modified pktgen). The two ixgbe ports are cab

Re: [E1000-devel] Poor performance with ixgbe and E5-2643

2012-11-20 Thread Ben Greear
On 11/20/2012 03:59 PM, Alexander Duyck wrote: > On 11/20/2012 02:56 PM, Ben Greear wrote: >> We are trying out some new hardware, but it's not able to go above about >> 4Gbps in each direction >> (using modified pktgen). The two ixgbe ports are cabled to each other. >> >> Ethernet controller: >>

Re: [E1000-devel] Poor performance with ixgbe and E5-2643

2012-11-20 Thread Alexander Duyck
On 11/20/2012 02:56 PM, Ben Greear wrote: > We are trying out some new hardware, but it's not able to go above about > 4Gbps in each direction > (using modified pktgen). The two ixgbe ports are cabled to each other. > > Ethernet controller: > > 03:00.0 Ethernet controller: Intel Corporation 82599

[E1000-devel] Poor performance with ixgbe and E5-2643

2012-11-20 Thread Ben Greear
We are trying out some new hardware, but it's not able to go above about 4Gbps in each direction (using modified pktgen). The two ixgbe ports are cabled to each other. Ethernet controller: 03:00.0 Ethernet controller: Intel Corporation 82599EB 10-Gigabit SFI/SFP+ Network Connection (rev 01) 03