On 25.4.2023. 13:28, Jan Klemkow wrote:
> On Fri, Apr 14, 2023 at 10:26:14AM +0800, Kevin Lo wrote:
>> On Thu, Apr 13, 2023 at 01:30:36PM -0500, Brian Conway wrote:
>>> Reviving this thread, apologies for discontinuity in mail readers: https://marc.info/?t=165642193500008
>>>
>>> After rebasing on 7.3, my results have mirrored Hrvoje's testing at
>>> the end of that thread. No issues with throughput, unusual latency,
>>> or reliability. `vmstat -i` shows some level of balancing between
>>> the queues. I've been testing on as many em(4) systems as I have
>>> access to, some manually, some in a packet forwarder/firewall
>>> scenarios:
>> Last time I tested (about a year go) on I211, rx locked up if I tried something
>> like iperf3 or tcpbench.  Don't know if you have a similar problem.
> I rebased the rest to current and tested it with tcpbench between the
> following interfaces:
> 
> em0 at pci7 dev 0 function 0 "Intel 82580" rev 0x01, msix, 4 queues, address 90:e2:ba:df:d5:2c
> em0 at pci5 dev 0 function 0 "Intel I350" rev 0x01, msix, 8 queues, address 00:25:90:eb:b3:c2
> 
> After a second the connection stucked.  As far as I can see, the
> sending side got a problem.

Hi all,

I've searched tech@ for multiqueue em and it seems that this is the last
mail. Is this still active topic? I've got little supermicro box with
few onboard em that could be nice box for testing forwarding ...

em0 at pci8 dev 0 function 0 "Intel I210" rev 0x03: msi, address
em1 at pci9 dev 0 function 0 "Intel I210" rev 0x03: msi, address
em2 at pci12 dev 0 function 0 "Intel I350" rev 0x01: msi, address
em3 at pci12 dev 0 function 1 "Intel I350" rev 0x01: msi, address
em4 at pci12 dev 0 function 2 "Intel I350" rev 0x01: msi, address
em5 at pci12 dev 0 function 3 "Intel I350" rev 0x01: msi, address



OpenBSD 7.9 (GENERIC.MP) #449: Wed May  6 13:17:25 MDT 2026
    deraadt@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 17052639232 (16262MB)
avail mem = 16508112896 (15743MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.8 @ 0xed9b0 (48 entries)
bios0: vendor American Megatrends Inc. version "2.6" date 02/06/2024
bios0: Supermicro Super Server
acpi0 at bios0: ACPI 5.0
acpi0: sleep states S0 S4 S5
acpi0: tables DSDT FACP APIC FPDT FIDT SPMI MCFG UEFI DBG2 HPET WDDT
SSDT SSDT SSDT PRAD DMAR HEST BERT ERST EINJ
acpi0: wakeup devices IP2P(S4) EHC1(S4) EHC2(S4) RP07(S4) RP08(S4)
BR1A(S4) BR1B(S4) BR2A(S4) BR2B(S4) BR2C(S4) BR2D(S4) BR3A(S4) BR3B(S4)
BR3C(S4) BR3D(S4) RP01(S4) [...]
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Xeon(R) CPU D-1518 @ 2.20GHz, 2200.05 MHz, 06-56-03,
patch 0700001c
cpu0: cpuid 1
edx=bfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
ecx=77fefbff<SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,DCA,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND>
cpu0: cpuid 6 eax=75<SENSOR,ARAT,PTS> ecx=9<EFFFREQ>
cpu0: cpuid 7.0
ebx=21cbfbb<FSGSBASE,TSC_ADJUST,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,PQM,RDSEED,ADX,SMAP,PT>
edx=9c000400<MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD>
cpu0: cpuid a vers=3, gp=4, gpwidth=48, ff=3, ffwidth=48
cpu0: cpuid d.1 eax=1<XSAVEOPT>
cpu0: cpuid 80000001 edx=2c100800<NXE,PAGE1GB,RDTSCP,LONG>
ecx=121<LAHF,ABM,3DNOWP>
cpu0: cpuid 80000007 edx=100<ITSC>
cpu0: MELTDOWN
cpu0: 32KB 64b/line 8-way D-cache, 32KB 64b/line 8-way I-cache, 256KB
64b/line 8-way L2 cache, 6MB 64b/line 12-way L3 cache
cpu0: smt 0, core 0, package 0, type P
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 100MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.2, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Xeon(R) CPU D-1518 @ 2.20GHz, 2200.09 MHz, 06-56-03,
patch 0700001c
cpu1: smt 0, core 1, package 0, type P
cpu2 at mainbus0: apid 4 (application processor)
cpu2: Intel(R) Xeon(R) CPU D-1518 @ 2.20GHz, 2200.09 MHz, 06-56-03,
patch 0700001c
cpu2: smt 0, core 2, package 0, type P
cpu3 at mainbus0: apid 6 (application processor)
cpu3: Intel(R) Xeon(R) CPU D-1518 @ 2.20GHz, 2200.11 MHz, 06-56-03,
patch 0700001c
cpu3: smt 0, core 3, package 0, type P
cpu4 at mainbus0: apid 1 (application processor)
cpu4: Intel(R) Xeon(R) CPU D-1518 @ 2.20GHz, 2200.20 MHz, 06-56-03,
patch 0700001c
cpu4: smt 1, core 0, package 0, type SP
cpu5 at mainbus0: apid 3 (application processor)
cpu5: Intel(R) Xeon(R) CPU D-1518 @ 2.20GHz, 2200.31 MHz, 06-56-03,
patch 0700001c
cpu5: smt 1, core 1, package 0, type SP
cpu6 at mainbus0: apid 5 (application processor)
cpu6: Intel(R) Xeon(R) CPU D-1518 @ 2.20GHz, 2200.41 MHz, 06-56-03,
patch 0700001c
cpu6: smt 1, core 2, package 0, type SP
cpu7 at mainbus0: apid 7 (application processor)
cpu7: Intel(R) Xeon(R) CPU D-1518 @ 2.20GHz, 2200.40 MHz, 06-56-03,
patch 0700001c
cpu7: smt 1, core 3, package 0, type SP
ioapic0 at mainbus0: apid 8 pa 0xfec00000, version 20, 24 pins
acpimcfg0 at acpi0
acpimcfg0: addr 0x80000000, bus 0-255
acpihpet0 at acpi0: 14318179 Hz
acpiprt0 at acpi0: bus 255 (UNC0)
acpiprt1 at acpi0: bus 0 (PCI0)
acpiprt2 at acpi0: bus 1 (BR1A)
acpiprt3 at acpi0: bus 2 (BR1B)
acpiprt4 at acpi0: bus 4 (BR2C)
acpiprt5 at acpi0: bus 5 (BR3A)
acpiprt6 at acpi0: bus 7 (RP01)
acpiprt7 at acpi0: bus 8 (RP02)
acpiprt8 at acpi0: bus 9 (RP04)
acpiprt9 at acpi0: bus 10 (BR3A)
acpiprt10 at acpi0: bus 11 (RP05)
acpipci0 at acpi0 UNC0: 0x00000010 0x00000011 0x00000000
"ACPI0004" at acpi0 not configured
"PNP0C33" at acpi0 not configured
"PNP0C14" at acpi0 not configured
acpipci1 at acpi0 PCI0: 0x00000010 0x00000011 0x00000000
"PNP0003" at acpi0 not configured
"PNP0C14" at acpi0 not configured
acpicmos0 at acpi0
com0 at acpi0 UAR1 addr 0x3f8/0x8 irq 4: ns16550a, 16 byte fifo
com1 at acpi0 UAR2 addr 0x2f8/0x8 irq 3: ns16550a, 16 byte fifo
"IPI0001" at acpi0 not configured
acpibtn0 at acpi0: PWRB
acpicpu0 at acpi0: C1(1000@1 halt), PSS
acpicpu1 at acpi0: C1(1000@1 halt), PSS
acpicpu2 at acpi0: C1(1000@1 halt), PSS
acpicpu3 at acpi0: C1(1000@1 halt), PSS
acpicpu4 at acpi0: C1(1000@1 halt), PSS
acpicpu5 at acpi0: C1(1000@1 halt), PSS
acpicpu6 at acpi0: C1(1000@1 halt), PSS
acpicpu7 at acpi0: C1(1000@1 halt), PSS
ipmi at mainbus0 not configured
cpu0: using VERW MDS workaround (except on vmm entry)
cpu0: Enhanced SpeedStep 2200 MHz: speeds: 2200, 2100, 2000, 1900, 1800,
1700, 1600, 1500, 1400, 1300, 1200, 1100, 1000, 900, 800 MHz
pci0 at mainbus0 bus 255
"Intel Xeon-D QPI Link" rev 0x03 at pci0 dev 11 function 0 not configured
"Intel Xeon-D QPI Link" rev 0x03 at pci0 dev 11 function 1 not configured
"Intel Xeon-D QPI Link" rev 0x03 at pci0 dev 11 function 2 not configured
"Intel Xeon-D QPI Debug" rev 0x03 at pci0 dev 11 function 3 not configured
"Intel Xeon-D Cache" rev 0x03 at pci0 dev 12 function 0 not configured
"Intel Xeon-D Cache" rev 0x03 at pci0 dev 12 function 1 not configured
"Intel Xeon-D Cache" rev 0x03 at pci0 dev 12 function 2 not configured
"Intel Xeon-D Cache" rev 0x03 at pci0 dev 12 function 3 not configured
"Intel Xeon-D Cache" rev 0x03 at pci0 dev 15 function 0 not configured
"Intel Xeon-D Cache" rev 0x03 at pci0 dev 15 function 4 not configured
"Intel Xeon-D Cache" rev 0x03 at pci0 dev 15 function 5 not configured
"Intel Xeon-D Cache" rev 0x03 at pci0 dev 15 function 6 not configured
"Intel Xeon-D PCIE" rev 0x03 at pci0 dev 16 function 0 not configured
"Intel E5 v4 R2PCIe Agent" rev 0x03 at pci0 dev 16 function 1 not configured
"Intel Xeon-D Ubox" rev 0x03 at pci0 dev 16 function 5 not configured
"Intel Xeon-D Ubox" rev 0x03 at pci0 dev 16 function 6 not configured
"Intel Xeon-D Ubox" rev 0x03 at pci0 dev 16 function 7 not configured
"Intel Xeon-D Home Agent" rev 0x03 at pci0 dev 18 function 0 not configured
"Intel Xeon-D Home Agent" rev 0x03 at pci0 dev 18 function 1 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 19 function 0 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 19 function 1 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 19 function 2 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 19 function 3 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 19 function 4 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 19 function 5 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 19 function 6 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 19 function 7 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 20 function 0 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 20 function 1 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 20 function 2 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 20 function 3 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 20 function 4 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 20 function 5 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 20 function 6 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 20 function 7 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 21 function 0 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 21 function 1 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 21 function 2 not configured
"Intel Xeon-D Memory" rev 0x03 at pci0 dev 21 function 3 not configured
"Intel Xeon-D PCU" rev 0x03 at pci0 dev 30 function 0 not configured
"Intel Xeon-D PCU" rev 0x03 at pci0 dev 30 function 1 not configured
"Intel Xeon-D PCU" rev 0x03 at pci0 dev 30 function 2 not configured
"Intel Xeon-D PCU" rev 0x03 at pci0 dev 30 function 3 not configured
"Intel Xeon-D PCU" rev 0x03 at pci0 dev 30 function 4 not configured
"Intel Xeon-D PCU" rev 0x03 at pci0 dev 31 function 0 not configured
"Intel Xeon-D PCU" rev 0x03 at pci0 dev 31 function 2 not configured
pci1 at mainbus0 bus 0
pchb0 at pci1 dev 0 function 0 "Intel Xeon-D Host" rev 0x03
ppb0 at pci1 dev 1 function 0 "Intel Xeon-D PCIE" rev 0x03
pci2 at ppb0 bus 1
ppb1 at pci1 dev 1 function 1 "Intel Xeon-D PCIE" rev 0x03
pci3 at ppb1 bus 2
ppb2 at pci1 dev 2 function 0 "Intel Xeon-D PCIE" rev 0x03
pci4 at ppb2 bus 3
"Intel Xeon-D QuickData" rev 0x00 at pci4 dev 0 function 0 not configured
"Intel Xeon-D QuickData" rev 0x00 at pci4 dev 0 function 1 not configured
"Intel Xeon-D QuickData" rev 0x00 at pci4 dev 0 function 2 not configured
"Intel Xeon-D QuickData" rev 0x00 at pci4 dev 0 function 3 not configured
ppb3 at pci1 dev 2 function 2 "Intel Xeon-D PCIE" rev 0x03
pci5 at ppb3 bus 4
ix0 at pci5 dev 0 function 0 "Intel X552 SFP+" rev 0x00, msix, 4 queues,
address 00:25:90:5d:ca:38
ix1 at pci5 dev 0 function 1 "Intel X552 SFP+" rev 0x00, msix, 4 queues,
address 00:25:90:5d:ca:39
ppb4 at pci1 dev 3 function 0 "Intel Xeon-D PCIE" rev 0x03: msi
pci6 at ppb4 bus 5
ppb5 at pci1 dev 3 function 2 "Intel Xeon-D PCIE" rev 0x03
pci7 at ppb5 bus 6
mcx0 at pci7 dev 0 function 0 "Mellanox ConnectX-4 Lx" rev 0x00: FW
14.32.2004, msix, 4 queues, address ec:0d:9a:9e:87:5e
mcx1 at pci7 dev 0 function 1 "Mellanox ConnectX-4 Lx" rev 0x00: FW
14.32.2004, msix, 4 queues, address ec:0d:9a:9e:87:5f
"Intel Xeon-D Address Map" rev 0x03 at pci1 dev 5 function 0 not configured
"Intel Xeon-D Hot Plug" rev 0x03 at pci1 dev 5 function 1 not configured
"Intel Xeon-D RAS" rev 0x03 at pci1 dev 5 function 2 not configured
xhci0 at pci1 dev 20 function 0 "Intel 8 Series xHCI" rev 0x05: msi,
xHCI 1.0
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev
3.00/1.00 addr 1
"Intel 8 Series MEI" rev 0x04 at pci1 dev 22 function 0 not configured
"Intel 8 Series MEI" rev 0x04 at pci1 dev 22 function 1 not configured
ehci0 at pci1 dev 26 function 0 "Intel 8 Series USB" rev 0x05: apic 8 int 18
usb1 at ehci0: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "Intel EHCI root hub" rev
2.00/1.00 addr 1
ppb6 at pci1 dev 28 function 0 "Intel 8 Series PCIE" rev 0xd5: msi
pci8 at ppb6 bus 7
em0 at pci8 dev 0 function 0 "Intel I210" rev 0x03: msi, address
00:25:90:5d:c9:98
ppb7 at pci1 dev 28 function 1 "Intel 8 Series PCIE" rev 0xd5: msi
pci9 at ppb7 bus 8
em1 at pci9 dev 0 function 0 "Intel I210" rev 0x03: msi, address
00:25:90:5d:c9:99
ppb8 at pci1 dev 28 function 3 "Intel 8 Series PCIE" rev 0xd5: msi
pci10 at ppb8 bus 9
ppb9 at pci10 dev 0 function 0 "ASPEED Technology AST1150 PCI" rev 0x03
pci11 at ppb9 bus 10
vga1 at pci11 dev 0 function 0 "ASPEED Technology AST2000" rev 0x30
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
ppb10 at pci1 dev 28 function 4 "Intel 8 Series PCIE" rev 0xd5: msi
pci12 at ppb10 bus 11
em2 at pci12 dev 0 function 0 "Intel I350" rev 0x01: msi, address
00:25:90:5d:c9:9a
em3 at pci12 dev 0 function 1 "Intel I350" rev 0x01: msi, address
00:25:90:5d:c9:9b
em4 at pci12 dev 0 function 2 "Intel I350" rev 0x01: msi, address
00:25:90:5d:c9:9c
em5 at pci12 dev 0 function 3 "Intel I350" rev 0x01: msi, address
00:25:90:5d:c9:9d
ehci1 at pci1 dev 29 function 0 "Intel 8 Series USB" rev 0x05: apic 8 int 18
usb2 at ehci1: USB revision 2.0
uhub2 at usb2 configuration 1 interface 0 "Intel EHCI root hub" rev
2.00/1.00 addr 1
pcib0 at pci1 dev 31 function 0 "Intel C224 LPC" rev 0x05
ahci0 at pci1 dev 31 function 2 "Intel 8 Series AHCI" rev 0x05: msi,
AHCI 1.3
ahci0: port 4: 6.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 4 lun 0: <ATA, INTEL SSDSCKJF24, LT2i>
naa.55cd2e414c94a064
sd0: 228936MB, 512 bytes/sector, 468862128 sectors, thin
ichiic0 at pci1 dev 31 function 3 "Intel 8 Series SMBus" rev 0x05: apic
8 int 18
iic0 at ichiic0
"Intel 8 Series Thermal" rev 0x05 at pci1 dev 31 function 6 not configured
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: VMX/EPT
uhub3 at uhub0 port 3 configuration 1 interface 0 "Genesys Logic USB2.0
Hub" rev 2.00/32.98 addr 2
uhub4 at uhub3 port 2 configuration 1 interface 0 "Genesys Logic USB2.0
Hub" rev 2.00/32.98 addr 3
uhub5 at uhub0 port 4 configuration 1 interface 0 "ATEN International
product 0x7000" rev 2.00/0.00 addr 4
uhidev0 at uhub5 port 1 configuration 1 interface 0 "ATEN International
product 0x2419" rev 1.10/1.00 addr 5
uhidev0: iclass 3/1
ukbd0 at uhidev0: 8 variable keys, 6 key codes
wskbd0 at ukbd0: console keyboard, using wsdisplay0
uhidev1 at uhub5 port 1 configuration 1 interface 1 "ATEN International
product 0x2419" rev 1.10/1.00 addr 5
uhidev1: iclass 3/1
ums0 at uhidev1: 3 buttons, Z dir
wsmouse0 at ums0 mux 0
uhub6 at uhub1 port 1 configuration 1 interface 0 "Intel Rate Matching
Hub" rev 2.00/0.05 addr 2
uhub7 at uhub2 port 1 configuration 1 interface 0 "Intel Rate Matching
Hub" rev 2.00/0.05 addr 2
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (cd367e465be8e57a.a) swap on sd0b dump on sd0b