Hi,
I've been working for a while tring to improve the network performance
of my local fileserver.
I'm using SSH/SSHFS to access files on it, and I can't get transfer
speeds over 10MB/s.
Initially, I had just 2.3MBps throughput, and after switching to the
arcfour128 cipher, managed to move this up to 10MBps.
It seems that CPU is my limiting factor - even disabling disk encryption
increased my speed.
CPU usage goes up to ~100.0% when copying files (~48% userspace, ~30%
system, 22% interrupts).
Looks like there's nothing wrong with my hardware (gigabit ethernet)
vge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
hwfeatures=37<CSUM_IPv4,CSUM_TCPv4,CSUM_UDPv4,VLAN_MTU,VLAN_HWTAGGING>
hardmtu 1500
lladdr 00:40:63:f6:ef:de
description: LAN
priority: 0
media: Ethernet autoselect (1000baseT full-duplex,rxpause,txpause)
status: active
inet 172.16.8.1 netmask 0xfffff000 broadcast 172.16.15.255
And even testing locally, I can't surpass the above limits:
$ dd if=/dev/zero | ssh localhost dd of=/dev/null
I noticed my CPU supports AES, but not AESNI, so at first, I though that
that might be using up all my CPU, but that only accounts for for 48% of
CPU usage. Is there anything else I can do to improve performance?
Also, is crypto(4) still supported (I only found some old messages
in misc@ saying it's no longer supported). Would that help SSH
performance?
OpenBSD 5.4 (GENERIC) #33: Thu Jul 25 00:33:27 MDT 2013
dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: VIA Esther processor 1000MHz ("CentaurHauls" 686-class) 1.01 GHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,CMOV,PAT,CFLUSH,ACPI,MMX
,FXSR,SSE,SSE2,TM,PBE,NXE,SSE3,EST,TM2
real mem = 2011410432 (1918MB)
avail mem = 1967108096 (1875MB)
mainbus0 at root
bios0 at mainbus0: AT/286+ BIOS, date 02/27/08, BIOS32 rev. 0 @ 0xf0010,
SMBIOS rev. 2.3 @ 0xfca30 (47 entries)
bios0: vendor American Megatrends Inc. version "080014" date 02/27/2008
apm0 at bios0: Power Management spec V1.2
acpi at bios0 function 0x0 not configured
pcibios0 at bios0: rev 3.0 @ 0xf0000/0x10000
pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xf5a20/272 (15 entries)
pcibios0: no compatible PCI ICU found: ICU vendor 0x1106 product 0x3287
pcibios0: Warning, unable to fix up PCI interrupt routing
pcibios0: PCI bus #130 is the last bus
bios0: ROM list: 0xc0000/0xde00 0xce000/0x1000 0xcf000/0x5c00!
cpu0 at mainbus0: (uniprocessor)
cpu0: RNG AES AES-CTR SHA1 SHA256 RSA
cpu0: unknown Enhanced SpeedStep CPU, msr 0x08100a1308000a13
cpu0: using only highest and lowest power states
cpu0: Enhanced SpeedStep 1010 MHz: speeds: 1000, 800 MHz
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 0 function 0 "VIA P4M900 Host" rev 0x00
viaagp0 at pchb0: v3
agp0 at viaagp0: aperture at 0xf0000000, size 0x10000000
pchb1 at pci0 dev 0 function 1 "VIA P4M900 Host" rev 0x00
pchb2 at pci0 dev 0 function 2 "VIA P4M900 Host" rev 0x00
pchb3 at pci0 dev 0 function 3 "VIA P4M900 Host" rev 0x00
pchb4 at pci0 dev 0 function 4 "VIA P4M900 Host" rev 0x00
"VIA P4M900 IOAPIC" rev 0x00 at pci0 dev 0 function 5 not configured
pchb5 at pci0 dev 0 function 6 "VIA P4M900 Security" rev 0x00
pchb6 at pci0 dev 0 function 7 "VIA P4M900 Host" rev 0x00
ppb0 at pci0 dev 1 function 0 "VIA VT8377 AGP" rev 0x00
pci1 at ppb0 bus 1
vga1 at pci1 dev 0 function 0 "VIA Chrome9 HC IGP" rev 0x01
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
ppb1 at pci0 dev 2 function 0 "VIA P4M900" rev 0x80: irq 10
pci2 at ppb1 bus 2
ppb2 at pci0 dev 3 function 0 "VIA P4M900" rev 0x80: irq 10
pci3 at ppb2 bus 3
vge0 at pci3 dev 0 function 0 "VIA VT612x" rev 0x82: irq 10, address
00:40:63:f6:ef:de
ipgphy0 at vge0 phy 22: IP1001 10/100/1000 PHY, rev. 0
ahci0 at pci0 dev 15 function 0 "VIA VT8251 AHCI" rev 0x20: irq 5, AHCI 1.0
scsibus0 at ahci0: 32 targets
sd0 at scsibus0 targ 2 lun 0: <ATA, WDC WD30EZRX-00D, 80.0> SCSI3 0/direct
fixed naa.50014ee6032ea621
sd0: 2861588MB, 512 bytes/sector, 5860533168 sectors
sd1 at scsibus0 targ 3 lun 0: <ATA, WDC WD20EARX-00P, 51.0> SCSI3 0/direct
fixed naa.50014ee206653204
sd1: 1907729MB, 512 bytes/sector, 3907029168 sectors
pciide0 at pci0 dev 15 function 1 "VIA VT82C571 IDE" rev 0x07: DMA, channel 0
configured to compatibility, channel 1 configured to compatibility
pciide0: channel 0 disabled (no drives)
pciide0: channel 1 disabled (no drives)
uhci0 at pci0 dev 16 function 0 "VIA VT83C572 USB" rev 0x91: irq 11
uhci1 at pci0 dev 16 function 1 "VIA VT83C572 USB" rev 0x91: irq 7
uhci2 at pci0 dev 16 function 2 "VIA VT83C572 USB" rev 0x91: irq 5
ehci0 at pci0 dev 16 function 4 "VIA VT6202 USB" rev 0x90: irq 7
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "VIA EHCI root hub" rev 2.00/1.00 addr 1
viapm0 at pci0 dev 17 function 0 "VIA VT8251 ISA" rev 0x00: SMI
iic0 at viapm0
spdmem0 at iic0 addr 0x51: 2GB DDR2 SDRAM non-parity PC2-6400CL5
viapm0: 24-bit timer at 3579545Hz
pchb7 at pci0 dev 17 function 7 "VIA VT8251 VLINK" rev 0x00
vr0 at pci0 dev 18 function 0 "VIA RhineII-2" rev 0x7c: irq 11, address
00:40:63:f6:ef:df
ukphy0 at vr0 phy 1: Generic IEEE 802.3u media interface, rev. 10: OUI
0x004063, model 0x0032
ppb3 at pci0 dev 19 function 0 "VIA VT8251 PCIE" rev 0x00
pci4 at ppb3 bus 128
ppb4 at pci4 dev 0 function 0 "VIA VT8251 PCIE" rev 0x00
pci5 at ppb4 bus 130
ppb5 at pci4 dev 0 function 1 "VIA VT8251 PCIE" rev 0x00
pci6 at ppb5 bus 129
azalia0 at pci4 dev 1 function 0 "VIA HD Audio" rev 0x00: irq 5
azalia0: codecs: VIA/0x1708
audio0 at azalia0
usb1 at uhci0: USB revision 1.0
uhub1 at usb1 "VIA UHCI root hub" rev 1.00/1.00 addr 1
usb2 at uhci1: USB revision 1.0
uhub2 at usb2 "VIA UHCI root hub" rev 1.00/1.00 addr 1
usb3 at uhci2: USB revision 1.0
uhub3 at usb3 "VIA UHCI root hub" rev 1.00/1.00 addr 1
isa0 at mainbus0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
schsio0 at isa0 port 0x162e/2: SCH3112 rev 0x02, watchdog disabled
npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
mtrr: Pentium Pro MTRR support
umass0 at uhub0 port 2 configuration 1 interface 0 "Generic USB2.0-CRW" rev
2.00/19.81 addr 2
umass0: using SCSI over Bulk-Only
scsibus1 at umass0: 2 targets, initiator 0
sd2 at scsibus1 targ 1 lun 0: <Generic-, SD/MMC, 1.00> SCSI0 0/direct
removable serial.0bda0119815198100000
sd2: 3789MB, 512 bytes/sector, 7759872 sectors
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd2a (8cd4486d62e3d00d.a) swap on sd2b dump on sd2b
--
Hugo Osvaldo Barrera
[demime 1.01d removed an attachment of type application/pgp-signature]
