A Perl based script that helps with smp optimization decisions.
smpopt maps out the cpu architecture and the PCI devices in the system, giving a quick and clear overview of device locaity, cpu's handling interrupt requests and devices sharing IRQ's.
It is also capable of setting the SMP affinity with a simple pragmatic configuration parameter to handle the set of all devices to the desired affinity with one command.
Please note that smpopt does have a few dependencies that must be installed to function correctly. On RHEL and YUM based systems, you should run:
# dnf install -y pciutils cpan util-linux
# cpan install Test experimental Data::Types Set::IntSpan::Fast
For Debian and APT based systems, you should use:
# apt-get install pciutils cpan util-linux
# cpan install Test experimental Data::types Set::IntSpan::Fast
Please verify package names for your distribution. The main dependencies aside from the CPAN modules is that the lscpu and lspci commands are available on your system.
To get started quickly and get an overview of configuration as well as an initial starting suggestion, you can use the following command-line:
# ./smpopt.pl --scan --adjustableonly --showsharedirqs --suggest
Gather CPU info...
System has [2] processors @ [1] cores per processor...
Total seen CPU's including logicals: [2]
SMT not detected...
Processor [0] has CPUs [0]
Unique physical core CPUs: [0]
Processor [1] has CPUs [1]
Unique physical core CPUs: [1]
PCI Devices Scanned:
00:00.0 Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 01)
Device is on Processor [0]
Device uses [IO-APIC] for [1] IRQ handler(s): [0]
Device has no interrupt handlers...
00:01.0 PCI bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge (rev 01)
Device is on Processor [0]
Device uses [IO-APIC] for [1] IRQ handler(s): [0]
Device has no interrupt handlers...
00:07.0 ISA bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 08)
Device is on Processor [0]
Device uses [IO-APIC] for [1] IRQ handler(s): [0]
Device has no interrupt handlers...
00:07.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01)
Device is on Processor [0]
Device uses [IO-APIC] for [1] IRQ handler(s): [0]
Device has no interrupt handlers...
Device uses driver [ata_piix] version [2.13]
00:07.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 08)
Device is on Processor [0]
Device uses [IO-APIC] for [1] IRQ handler(s): [9]
Device currently using IRQ handlers: [9]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:07.7 System peripheral: VMware Virtual Machine Communication Interface (rev 10)
Device is on Processor [0]
Device uses [MSI-X] for [2] IRQ handler(s): [56-57]
Device currently using IRQ handlers: [56-57]
Device uses cores [0] for interrupts
Device uses driver [vmw_vmci] version [1.1.6.0-k]
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:0f.0 VGA compatible controller: VMware SVGA II Adapter
Device is on Processor [0]
Device uses [IO-APIC] for [1] IRQ handler(s): [16]
Device currently using IRQ handlers: [16]
Device uses cores [1] for interrupts
*** [NOTICE] *** Device affinity appears to be nonoptimal! *** [NOTICE] ***
Device uses driver [vmwgfx] version [2.19.0.0]
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:10.0 SCSI storage controller: Broadcom / LSI 53c1030 PCI-X Fusion-MPT Dual Ultra320 SCSI (rev 01)
Device is on Processor [0]
Device uses [IO-APIC] for [1] IRQ handler(s): [17]
Device currently using IRQ handlers: [17]
Device uses cores [0] for interrupts
Device uses driver [mptspi] version [3.04.20]
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:11.0 PCI bridge: VMware PCI bridge (rev 02)
Device is on Processor [0]
Device uses [IO-APIC] for [1] IRQ handler(s): [0]
Device has no interrupt handlers...
00:15.0 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [24]
Device currently using IRQ handlers: [24]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:15.1 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [25]
Device currently using IRQ handlers: [25]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:15.2 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [26]
Device currently using IRQ handlers: [26]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:15.3 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [27]
Device currently using IRQ handlers: [27]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:15.4 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [28]
Device currently using IRQ handlers: [28]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:15.5 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [29]
Device currently using IRQ handlers: [29]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:15.6 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [30]
Device currently using IRQ handlers: [30]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:15.7 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [31]
Device currently using IRQ handlers: [31]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:16.0 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [32]
Device currently using IRQ handlers: [32]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:16.1 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [33]
Device currently using IRQ handlers: [33]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:16.2 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [34]
Device currently using IRQ handlers: [34]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:16.3 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [35]
Device currently using IRQ handlers: [35]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:16.4 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [36]
Device currently using IRQ handlers: [36]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:16.5 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [37]
Device currently using IRQ handlers: [37]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:16.6 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [38]
Device currently using IRQ handlers: [38]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:16.7 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [39]
Device currently using IRQ handlers: [39]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:17.0 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [40]
Device currently using IRQ handlers: [40]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:17.1 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [41]
Device currently using IRQ handlers: [41]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:17.2 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [42]
Device currently using IRQ handlers: [42]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:17.3 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [43]
Device currently using IRQ handlers: [43]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:17.4 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [44]
Device currently using IRQ handlers: [44]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:17.5 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [45]
Device currently using IRQ handlers: [45]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:17.6 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [46]
Device currently using IRQ handlers: [46]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:17.7 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [47]
Device currently using IRQ handlers: [47]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:18.0 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [48]
Device currently using IRQ handlers: [48]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:18.1 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [49]
Device currently using IRQ handlers: [49]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:18.2 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [50]
Device currently using IRQ handlers: [50]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:18.3 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [51]
Device currently using IRQ handlers: [51]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:18.4 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [52]
Device currently using IRQ handlers: [52]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:18.5 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [53]
Device currently using IRQ handlers: [53]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:18.6 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [54]
Device currently using IRQ handlers: [54]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
00:18.7 PCI bridge: VMware PCI Express Root Port (rev 01)
Device is on Processor [0]
Device uses [MSI-X] for [1] IRQ handler(s): [55]
Device currently using IRQ handlers: [55]
Device uses cores [0] for interrupts
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
02:00.0 USB controller: VMware USB1.1 UHCI Controller
Device is on Processor [0]
Device uses [IO-APIC] for [1] IRQ handler(s): [18]
Device currently using IRQ handlers: [18]
Device uses cores [0] for interrupts
Device uses driver [uhci_hcd]
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
02:01.0 Ethernet controller: Intel Corporation 82545EM Gigabit Ethernet Controller (Copper) (rev 01)
Device is on Processor [0]
Device uses [IO-APIC] for [1] IRQ handler(s): [19]
Device currently using IRQ handlers: [19]
Device uses cores [0] for interrupts
Device uses driver [e1000]
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
02:02.0 Multimedia audio controller: Ensoniq ES1371/ES1373 / Creative Labs CT2518 (rev 02)
Device is on Processor [0]
Device uses [IO-APIC] for [1] IRQ handler(s): [16]
Device currently using IRQ handlers: [16]
Device uses cores [1] for interrupts
*** [NOTICE] *** Device affinity appears to be nonoptimal! *** [NOTICE] ***
Device uses driver [snd_ens1371]
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
02:03.0 USB controller: VMware USB2 EHCI Controller
Device is on Processor [0]
Device uses [IO-APIC] for [1] IRQ handler(s): [17]
Device currently using IRQ handlers: [17]
Device uses cores [0] for interrupts
Device uses driver [ehci_pci]
Suggested Affinity: [0]
Note: This is just a rough suggestion. Further optimization may need to be done...
Devices that affinity should be looked at:
00:0f.0 VGA compatible controller: VMware SVGA II Adapter
02:02.0 Multimedia audio controller: Ensoniq ES1371/ES1373 / Creative Labs CT2518 (rev 02)
Checking for shared IRQ handlers...
IRQ [0] is shared by the following devices:
00:00.0 Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 01)
00:01.0 PCI bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge (rev 01)
00:07.0 ISA bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 08)
00:07.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01)
00:11.0 PCI bridge: VMware PCI bridge (rev 02)
IRQ [16] is shared by the following devices:
00:0f.0 VGA compatible controller: VMware SVGA II Adapter
02:02.0 Multimedia audio controller: Ensoniq ES1371/ES1373 / Creative Labs CT2518 (rev 02)
IRQ [17] is shared by the following devices:
00:10.0 SCSI storage controller: Broadcom / LSI 53c1030 PCI-X Fusion-MPT Dual Ultra320 SCSI (rev 01)
02:03.0 USB controller: VMware USB2 EHCI Controller
Suggested -set commandline for basline performance adjustment:
./smpopt.pl --set --device "00:07.3@0:rr;00:07.7@0:rr;00:0f.0@0:rr;00:10.0@0:rr;00:15.0@0:rr;00:15.1@0:rr;00:15.2@0:rr;00:15.3@0:rr;00:15.4@0:rr;00:15.5@0:rr;00:15.6@0:rr;00:15.7@0:rr;00:16.0@0:rr;00:16.1@0:rr;00:16.2@0:rr;00:16.3@0:rr;00:16.4@0:rr;00:16.5@0:rr;00:16.6@0:rr;00:16.
7@0:rr;00:17.0@0:rr;00:17.1@0:rr;00:17.2@0:rr;00:17.3@0:rr;00:17.4@0:rr;00:17.5@0:rr;00:17.6@0:rr;00:17.7@0:rr;00:18.0@0:rr;00:18.1@0:rr;00:18.2@0:rr;00:18.3@0:rr;00:18.4@0:rr;00:18.5@0:rr;00:18.6@0:rr;00:18.7@0:rr;02:00.0@0:rr;02:01.0@0:rr;02:02.0@0:rr;02:03.0@0:rr" --noconfirm