Re: abysmally low scp performance

[Edgar Fuß <ef%math.uni-bonn.de@localhost>]

> A common good value is 920-940Mbit/s for TCP alone.
That's approximately what I'd expect.

> ssh then depends on CPU performance.
But as long as all CPUs are significantly idle, all should be OK, no?

> That's NetBSD-9 vs. NetBSD-current on 7-year old hardware.
For me, it's -8 on both sides and hardware from 2008/2012.

On the sending side, it's:
wm0 at pci2 dev 0 function 0: Intel i82574L (rev. 0x00)
wm0: interrupting at ioapic0 pin 17
wm0: PCI-Express bus
wm0: 2048 words (8 address bits) SPI EEPROM, version 1.9.0, Image Unique ID 0000ffff
wm0: ASPM L0s and L1 are disabled to workaround the errata.
wm0: Ethernet address [...]
wm0: 0x224440<SPI,IOH_VALID,PCIE,ASF_FIRM,WOL>
makphy0 at wm0 phy 1: Marvell 88E1149 Gigabit PHY, rev. 1
makphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto

And on the receiving side:
wm0 at pci0 dev 4 function 0: Intel i82541GI 1000BASE-T Ethernet (rev. 0x05)
wm0: interrupting at ioapic1 pin 8
wm0: 32-bit 33MHz PCI bus
wm0: 256 words (8 address bits) MicroWire EEPROM
wm0: Ethernet address [...]
wm0: 0x220402<LOCK_EECD,IOH_VALID,ASF_FIRM,WOL>
igphy0 at wm0 phy 1: Intel IGP01E1000 Gigabit PHY, rev. 0
igphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto

Anything suspicious about that?

> That HPN patch is old, the current (patch, not NetBSD) one is better.
> But for most people, disabling is much easier.
So I guess it should be disabled by default?