Dmitry Antipov
2020-Nov-26 08:47 UTC
[Gluster-users] Poor performance on a server-class system vs. desktop
On 11/26/20 11:29 AM, Gionatan Danti wrote:> Can you details your exact client and server CPU model?Desktop is 8x of: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 94 model name : Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz stepping : 3 microcode : 0xe2 cpu MHz : 800.114 cache size : 6144 KB physical id : 0 siblings : 8 core id : 3 cpu cores : 4 apicid : 7 initial apicid : 7 fpu : yes fpu_exception : yes cpuid level : 22 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp md_clear flush_l1d vmx flags : vnmi preemption_timer invvpid ept_x_only ept_ad ept_1gb flexpriority tsc_offset vtpr mtf vapic ept vpid unrestricted_guest ple pml bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit srbds bogomips : 5199.98 clflush size : 64 cache_alignment : 64 address sizes : 39 bits physical, 48 bits virtual and NVME disk is: Model Number: THNSN5128GPU7 TOSHIBA Serial Number: 366S11IKTP6V Firmware Version: 57XA4104 PCI Vendor/Subsystem ID: 0x1179 IEEE OUI Identifier: 0x00080d Controller ID: 0 Number of Namespaces: 1 Namespace 1 Size/Capacity: 128,035,676,160 [128 GB] Namespace 1 Formatted LBA Size: 512 Namespace 1 IEEE EUI-64: 00080d 020004008b Server is 32x of: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 85 model name : Intel(R) Xeon(R) Silver 4110 CPU @ 2.10GHz stepping : 4 microcode : 0x200005a cpu MHz : 800.057 cache size : 11264 KB physical id : 1 siblings : 16 core id : 7 cpu cores : 8 apicid : 31 initial apicid : 31 fpu : yes fpu_exception : yes cpuid level : 22 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 cdp_l3 invpcid_single ssbd mba ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm cqm mpx rdt_a avx512f avx512dq rdseed adx smap clflushopt clwb intel_pt avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local dtherm ida arat pln pts hwp hwp_act_window hwp_epp hwp_pkg_req pku ospke flush_l1d vmx flags : vnmi preemption_timer posted_intr invvpid ept_x_only ept_ad ept_1gb flexpriority apicv tsc_offset vtpr mtf vapic ept vpid unrestricted_guest vapic_reg vid ple shadow_vmcs pml ept_mode_based_exec tsc_scaling bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit bogomips : 4201.60 clflush size : 64 cache_alignment : 64 address sizes : 46 bits physical, 48 bits virtual and NVME disk is: Model Number: INTEL SSDPE7KX020T7 Serial Number: PHLF8103001B2P0LGN Firmware Version: QDV10170 PCI Vendor/Subsystem ID: 0x8086 IEEE OUI Identifier: 0x5cd2e4 Total NVM Capacity: 2,000,398,934,016 [2.00 TB] Unallocated NVM Capacity: 0 Controller ID: 0 Number of Namespaces: 1 Namespace 1 Size/Capacity: 2,000,398,934,016 [2.00 TB] Namespace 1 Formatted LBA Size: 512 Dmitry
Gionatan Danti
2020-Nov-26 17:14 UTC
[Gluster-users] Poor performance on a server-class system vs. desktop
Il 2020-11-26 09:47 Dmitry Antipov ha scritto:> On 11/26/20 11:29 AM, Gionatan Danti wrote: > >> Can you details your exact client and server CPU model? > > Desktop is 8x of: > model name : Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz > > Server is 32x of: > model name : Intel(R) Xeon(R) Silver 4110 CPU @ 2.10GHzYour desktop CPU single-thread performance is significantly higher than the server CPU: the former turbo to 3.5 GHz, while the latter only to 3.0 GHz. Moreover, for single-thread workloads Skylake client is 3-5% faster than Skylake server at the same frequency. So I think you simply are CPU limited. I remember doing some tests with loopback RAM disks and finding that Gluster used 100% CPU (ie: full load on an entire core) when doing 4K random writes. Side note: using synchronized (ie: fsync) 4k writes, I only get ~600 IOPs even when running both bricks on the same machine and backing them with RAM disks (in other words, with no network or disk bottleneck). Regards. -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it email: g.danti at assyoma.it - info at assyoma.it GPG public key ID: FF5F32A8