https://community.intel.com/t5/Mobile-and-Desktop-Processors/Performance-Degradation-in-CPU-v4-vs-CPU-v3/m-p/465299#M22025 <P>Hi Doc,</P><P>Operating System: Centos 7.3</P><P>cpu info:</P>ndor_id : GenuineIntelcpu family : 6model : 79model name : Intel(R) Xeon(R) CPU E5-2680 v4 @ 2.40GHz<P>Motheboard and Bios info:</P><P></P><P>description: Rack Mount Chassis</P><P> product: X10DRH (085915D9)</P><P> vendor: Supermicro</P><P> version: 123456789</P><P> serial: 123456789</P><P> width: 64 bits</P><P> capabilities: smbios-3.0 dmi-3.0 smp vsyscall32</P><P> configuration: boot=normal chassis=rackmount family=SMC X10 sku=085915D9 uuid=00000000-0000-0000-0000-002590F9F7AE</P><P> *-core</P><P> description: Motherboard</P><P> product: X10DRH-IT</P><P> vendor: Supermicro</P><P> physical id: 0</P><P> version: 1.00</P><P> serial: OM14BS004942</P><P> slot: Default string</P><P> *-firmware</P><P> description: BIOS</P><P> vendor: American Megatrends Inc.</P><P> physical id: 0</P><P> version: 2.0</P><P> date: 12/17/2015</P><P> size: 64KiB</P><P> capacity: 8128KiB</P><P> capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb biosbootspecification uefi</P><P></P><P>thanks,</P><P>Abe</P> Tue, 22 Aug 2017 00:09:34 GMT aAsra 2017-08-22T00:09:34Z https://community.intel.com/t5/Mobile-and-Desktop-Processors/Performance-Degradation-in-CPU-v4-vs-CPU-v3/m-p/465297#M22023 <P>We are running IOR benchmarking on a Lustre filesystem and we see performance degradation when upgrading from cpu v3 to cpu v4;</P><P></P><P>We are seeing cpus overload under IOR benchmark, this is occurring after cpu v3 to v4 upgrade</P><P> As a result, we see performance degradation after the upgrade..</P><P></P><P>can someone take a look at the syslog to see if this is a known issue:</P><P></P><P>Syslog messages and snapshot of the cpus utilizations are below:</P><P></P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 54 stuck for 22s! [ll_ost_io01_107:24645]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:49 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 3 stuck for 23s! [ptlrpcd_00_13:7854]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:49 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 10 stuck for 23s! [ptlrpcd_00_07:7848]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:49 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 46 stuck for 22s! [ll_ost_io01_047:49948]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:49 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 48 stuck for 22s! [ll_ost_io01_092:24578]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:53 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 4 stuck for 22s! [ptlrpcd_00_19:7860]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:53 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 27 stuck for 23s! [ll_ost_io01_086:22338]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 0 stuck for 22s! [ptlrpcd_00_08:7849]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 12 stuck for 22s! [ptlrpcd_00_14:7855]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 15 stuck for 22s! [ll_ost_io01_008:50182]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 17 stuck for 22s! [kiblnd_sd_01_02:7835]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 18 stuck for 22s! [kiblnd_sd_01_01:7834]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 20 stuck for 22s! [ll_ost_io01_016:44925]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 21 stuck for 22s! [ll_ost_io01_076:22069]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 22 stuck for 22s! [kiblnd_sd_01_00:7833]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 23 stuck for 22s! [ll_ost_io01_094:24592]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 24 stuck for 22s! [kiblnd_sd_01_03:7836]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 25 stuck for 22s! [ll_ost_io01_106:24643]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 26 stuck for 22s! [ll_ost_io01_064:33777]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 36 stuck for 22s! [kiblnd_sd_00_00:7829]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 43 stuck for 22s! [ll_ost_io01_031:42636]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 44 stuck for 22s! [ll_ost_io01_109:24689]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 49 stuck for 22s! [ll_ost_io01_046:50178]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:53:57 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 53 stuck for 22s! [ll_ost_io01_029:37763]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:54:01 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 8 stuck for 22s! [ptlrpcd_00_09:7850]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:54:01 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 16 stuck for 22s! [ll_ost_io01_098:24613]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:54:01 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 32 stuck for 22s! [ptlrpcd_00_12:7853]</P><P></P><P>Message from syslogd@OSS1-A212 at Aug 21 15:54:01 ...</P><P>kernel:NMI watchdog: BUG: soft lockup - CPU# 42 stuck for 22s! [ll_ost_io01_024:39085]</P><P></P><P>Message from syslogd@OSS...</P> Mon, 21 Aug 2017 23:19:36 GMT https://community.intel.com/t5/Mobile-and-Desktop-Processors/Performance-Degradation-in-CPU-v4-vs-CPU-v3/m-p/465297#M22023 aAsra 2017-08-21T23:19:36Z https://community.intel.com/t5/Mobile-and-Desktop-Processors/Performance-Degradation-in-CPU-v4-vs-CPU-v3/m-p/465298#M22024 <P>What are the processor model numbers?</P><P>What motherboard and BIOS are you using?</P><P>What operating system are you using?</P><P></P><P>Doc</P> Mon, 21 Aug 2017 23:34:39 GMT https://community.intel.com/t5/Mobile-and-Desktop-Processors/Performance-Degradation-in-CPU-v4-vs-CPU-v3/m-p/465298#M22024 AlHill 2017-08-21T23:34:39Z https://community.intel.com/t5/Mobile-and-Desktop-Processors/Performance-Degradation-in-CPU-v4-vs-CPU-v3/m-p/465299#M22025 <P>Hi Doc,</P><P>Operating System: Centos 7.3</P><P>cpu info:</P>ndor_id : GenuineIntelcpu family : 6model : 79model name : Intel(R) Xeon(R) CPU E5-2680 v4 @ 2.40GHz<P>Motheboard and Bios info:</P><P></P><P>description: Rack Mount Chassis</P><P> product: X10DRH (085915D9)</P><P> vendor: Supermicro</P><P> version: 123456789</P><P> serial: 123456789</P><P> width: 64 bits</P><P> capabilities: smbios-3.0 dmi-3.0 smp vsyscall32</P><P> configuration: boot=normal chassis=rackmount family=SMC X10 sku=085915D9 uuid=00000000-0000-0000-0000-002590F9F7AE</P><P> *-core</P><P> description: Motherboard</P><P> product: X10DRH-IT</P><P> vendor: Supermicro</P><P> physical id: 0</P><P> version: 1.00</P><P> serial: OM14BS004942</P><P> slot: Default string</P><P> *-firmware</P><P> description: BIOS</P><P> vendor: American Megatrends Inc.</P><P> physical id: 0</P><P> version: 2.0</P><P> date: 12/17/2015</P><P> size: 64KiB</P><P> capacity: 8128KiB</P><P> capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb biosbootspecification uefi</P><P></P><P>thanks,</P><P>Abe</P> Tue, 22 Aug 2017 00:09:34 GMT https://community.intel.com/t5/Mobile-and-Desktop-Processors/Performance-Degradation-in-CPU-v4-vs-CPU-v3/m-p/465299#M22025 aAsra 2017-08-22T00:09:34Z https://community.intel.com/t5/Mobile-and-Desktop-Processors/Performance-Degradation-in-CPU-v4-vs-CPU-v3/m-p/465300#M22026 <P>Hello <B> aasraoui</B>,</P><P>&nbsp;</P> <P>&nbsp;</P>I know that you are expecting support here but please be aware that your best contact support is with your system manufacturer (Supermicro). I know that this is an Intel processor but your system manufacturer is more familiar with your PC features, specifications and how all the components interact with each other. At this point for you to get the proper support you can contact here:<P>&nbsp;</P><A href="http://www.supermicro.com/products/motherboard/Xeon/C600/X10DRH-iT.cfm">http://www.supermicro.com/products/motherboard/Xeon/C600/X10DRH-iT.cfm</A> <A href="http://www.supermicro.com/products/motherboard/Xeon/C600/X10DRH-iT.cfm">http://www.supermicro.com/products/motherboard/Xeon/C600/X10DRH-iT.cfm</A><P>&nbsp;</P>NOTE: This link is being offered for your convenience and should not be viewed as an endorsement by Intel of the content, products, or services offered there. <P>&nbsp;</P> <P>&nbsp;</P>Regards,<P>&nbsp;</P> <P>&nbsp;</P> <P>&nbsp;</P>Ivan U.<P>&nbsp;</P> Tue, 22 Aug 2017 21:36:15 GMT https://community.intel.com/t5/Mobile-and-Desktop-Processors/Performance-Degradation-in-CPU-v4-vs-CPU-v3/m-p/465300#M22026 idata 2017-08-22T21:36:15Z https://community.intel.com/t5/Mobile-and-Desktop-Processors/Performance-Degradation-in-CPU-v4-vs-CPU-v3/m-p/465301#M22027 <P>Hi Abe</P><P></P><P>Were you able to find a root cause or resolution? we are experiencing the same issue with the v4 procs. Our environment has over 50 FC630's running with the v3 proc's with no issues, we added 30 FC630's running with the v4 proc's into the same environment and most of them are having CPU Softlocks issues when running under a heavy load.</P><P> </P><P>Operating System: Ubuntu 14.04</P><P>Hardware Info: Dell PowerEdge FC630</P><P>CPU Info:</P><P>vendor_id : GenuineIntel</P><P>cpu family : 6</P><P>model : 79</P><P>model name : Intel(R) Xeon(R) CPU E5-2680 v4 @ 2.40GHz</P><P>stepping : 1</P><P>microcode : 0xb00001f</P><P>BIOS:</P><P>BIOS Information</P><P> Vendor: Dell Inc.</P><P> Version: 2.4.2</P><P> Release Date: 01/09/2017</P><P> Address: 0xF0000</P><P> Runtime Size: 64 kB</P><P> ROM Size: 16384 kB</P><P> Characteristics:</P><P> ISA is supported</P><P> PCI is supported</P><P> PNP is supported</P><P> BIOS is upgradeable</P><P> BIOS shadowing is allowed</P><P> Boot from CD is supported</P><P> Selectable boot is supported</P><P> EDD is supported</P><P> Japanese floppy for Toshiba 1.2 MB is supported (int 13h)</P><P> 5.25"/360 kB floppy services are supported (int 13h)</P><P> 5.25"/1.2 MB floppy services are supported (int 13h)</P><P> 3.5"/720 kB floppy services are supported (int 13h)</P><P> 8042 keyboard services are supported (int 9h)</P><P> Serial services are supported (int 14h)</P><P> CGA/mono video services are supported (int 10h)</P><P> ACPI is supported</P><P> USB legacy is supported</P><P> BIOS boot specification is supported</P><P> Function key-initiated network boot is supported</P><P> Targeted content distribution is supported</P><P> UEFI is supported</P><P> BIOS Revision: 2.4</P> Fri, 15 Sep 2017 15:32:28 GMT https://community.intel.com/t5/Mobile-and-Desktop-Processors/Performance-Degradation-in-CPU-v4-vs-CPU-v3/m-p/465301#M22027 GNiet 2017-09-15T15:32:28Z