On Tue, 2015-06-09 at 11:04 -0500, 'Bjorn Helgaas' via linux-ntb wrote: > On Tue, Jun 9, 2015 at 4:44 AM, Allen Hubbe <Allen.Hubbe@xxxxxxx> > wrote: > > From: Dave Jiang <dave.jiang@xxxxxxxxx> > > > > Benchmarking showed significant performance increase going from MTU > > size > > of 64k from 16k. Changing the default. > > This changelog doesn't parse. I think you mean "going from MTU size > 16k to 64k." Yes. Sorry about the confusion. > > The original value was 0x401e (16k + 0x1e), and the new value is > exactly 64k. Please include a note about what that extra 0x1e was > for > and why it isn't needed in the new value. Jon, can you comment on why there's the additional 30 bytes on top of 16k in the previous value? > > > Signed-off-by: Dave Jiang <dave.jiang@xxxxxxxxx> > > --- > > drivers/ntb/ntb_transport.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/ntb/ntb_transport.c > > b/drivers/ntb/ntb_transport.c > > index ea237aeca28c..c87bc0cbd607 100644 > > --- a/drivers/ntb/ntb_transport.c > > +++ b/drivers/ntb/ntb_transport.c > > @@ -76,7 +76,7 @@ static unsigned long max_mw_size; > > module_param(max_mw_size, ulong, 0644); > > MODULE_PARM_DESC(max_mw_size, "Limit size of large memory > > windows"); > > > > -static unsigned int transport_mtu = 0x401E; > > +static unsigned int transport_mtu = 0x10000; > > module_param(transport_mtu, uint, 0644); > > MODULE_PARM_DESC(transport_mtu, "Maximum size of NTB transport > > packets"); > > > > -- > > 2.4.0.rc0.43.gcf8a8c6 > > > > -- > > To unsubscribe from this list: send the line "unsubscribe linux > > -pci" in > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > More majordomo info at http://vger.kernel.org/majordomo-info.html > ��.n��������+%������w��{.n�����{���"�)�� jg��� �����ݢj����G���� ���j:+v���w�m������w�������h�����٥
