before upgrading (gentoo-sources-4.1.6) make -j9 loads all 8 cores. #cpupower |Mperf || Idle_Stats CPU | C0 | Cx | Freq || POLL | C1 | C2 0| 99.99| 0.01| 3887|| 0.00| 0.00| 0.00 1| 99.99| 0.01| 3888|| 0.00| 0.00| 0.00 2| 99.99| 0.01| 3887|| 0.00| 0.00| 0.00 3| 99.99| 0.01| 3888|| 0.00| 0.00| 0.00 4| 99.99| 0.01| 3887|| 0.00| 0.00| 0.00 5| 98.50| 1.50| 3888|| 0.00| 0.00| 1.48 6| 99.99| 0.01| 3887|| 0.00| 0.00| 0.00 7| 99.99| 0.01| 3887|| 0.00| 0.00| 0.00 After upgrading (gentoo-sources-4.2.0-r1) make -j9 loads only one core #cpupower |Mperf || Idle_Stats CPU | C0 | Cx | Freq || POLL | C1 | C2 0| 99.97| 0.03| 3886|| 0.00| 0.00| 0.00 1| 0.00|100.00| 3448|| 0.00| 0.00|100.00 2| 0.00|100.00| 2212|| 0.00| 0.00|100.00 3| 0.01| 99.99| 1770|| 0.00| 0.00| 99.99 4| 0.03| 99.97| 1806|| 0.00| 0.00| 99.97 5| 0.02| 99.98| 1778|| 0.00| 0.00| 99.98 6| 0.02| 99.98| 1822|| 0.00| 0.00| 99.98 7| 0.00|100.00| 1839|| 0.00| 0.00|100.00 I'm upgrading with genkernel --oldconfig all with .config from previous kernel. (sys-kernel/genkernel-next-63) Reproducible: Always diff kernel-config-x86_64-4.1.6-gentoo kernel-config-x86_64-4.2.0-gentoo-r1 3c3 < # Linux/x86 4.1.6-gentoo Kernel Configuration --- > # Linux/x86 4.2.0-gentoo-r1 Kernel Configuration 51d50 < CONFIG_X86_HT=y 100d98 < CONFIG_GENERIC_IRQ_LEGACY_ALLOC_HWIRQ=y 103a102 > CONFIG_IRQ_DOMAIN_HIERARCHY=y 104a104 > CONFIG_GENERIC_MSI_IRQ_DOMAIN=y 145a146 > # CONFIG_RCU_EXPERT is not set 152,155d152 < CONFIG_RCU_FANOUT=64 < CONFIG_RCU_FANOUT_LEAF=16 < # CONFIG_RCU_FANOUT_EXACT is not set < # CONFIG_RCU_FAST_NO_HZ is not set 157,158d153 < # CONFIG_RCU_BOOST is not set < CONFIG_RCU_KTHREAD_PRIO=0 270a266 > CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y 300a297 > CONFIG_HAVE_COPY_THREAD_TLS=y 320a318 > CONFIG_MODULES_TREE_LOOKUP=y 372,373c370,373 < CONFIG_ARCH_USE_QUEUE_RWLOCK=y < CONFIG_QUEUE_RWLOCK=y --- > CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y > CONFIG_QUEUED_SPINLOCKS=y > CONFIG_ARCH_USE_QUEUED_RWLOCKS=y > CONFIG_QUEUED_RWLOCKS=y 499a500 > CONFIG_ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT=y 566a568 > CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y 590a593 > # CONFIG_ACPI_NFIT is not set 672a676 > CONFIG_PCI_MSI_IRQ_DOMAIN=y 719a724 > CONFIG_NET_INGRESS=y 761c766 < CONFIG_GENEVE=m --- > CONFIG_GENEVE_CORE=m 811a817 > CONFIG_NETFILTER_INGRESS=y 1093a1100 > # CONFIG_NET_CLS_FLOWER is not set 1163a1171 > CONFIG_BT_RTL=m 1165a1174 > CONFIG_BT_HCIBTUSB_RTL=y 1217a1227 > CONFIG_MAC80211_STA_HASH_MAX_SIZE=0 1271a1282 > # CONFIG_OF is not set 1309d1319 < # CONFIG_BLK_DEV_PMEM is not set 1374a1385,1389 > # CONFIG_SCIF_BUS is not set 1383a1403 > # CONFIG_CXL_KERNEL_API is not set 1456a1477 > # CONFIG_SCSI_SNIC is not set 1645a1667 > CONFIG_GENEVE=m 1649a1672 > # CONFIG_TUN_VNET_CROSS_LE is not set 1676a1700 > # CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set 1718a1743,1747 > CONFIG_NET_VENDOR_CAVIUM=y > # CONFIG_THUNDER_NIC_PF is not set > # CONFIG_THUNDER_NIC_VF is not set > # CONFIG_THUNDER_NIC_BGX is not set > # CONFIG_LIQUIDIO is not set 1747a1777 > CONFIG_NET_VENDOR_EZCHIP=y 1816a1847 > CONFIG_NET_VENDOR_RENESAS=y 1876a1908 > # CONFIG_DP83867_PHY is not set 2052a2085 > # CONFIG_WL_MEDIATEK is not set 2072a2106 > CONFIG_INPUT_LEDS=m 2202a2237 > # CONFIG_TOUCHSCREEN_WDT87XX_I2C is not set 2259a2295 > # CONFIG_INPUT_DRV2665_HAPTICS is not set 2547a2584 > # CONFIG_CHARGER_BQ24257 is not set 2548a2586 > # CONFIG_CHARGER_BQ25890 is not set 2550a2589 > # CONFIG_CHARGER_RT9455 is not set 2583a2623 > # CONFIG_SENSORS_DELL_SMM is not set 2675a2716 > # CONFIG_SENSORS_TC74 is not set 2701a2743 > # CONFIG_THERMAL_WRITABLE_TRIPS is not set 2704a2747 > # CONFIG_THERMAL_DEFAULT_GOV_POWER_ALLOCATOR is not set 2708a2752 > # CONFIG_THERMAL_GOV_POWER_ALLOCATOR is not set 2711a2756 > CONFIG_INTEL_SOC_DTS_IOSF_CORE=m 2729a2775 > # CONFIG_MAX63XX_WATCHDOG is not set 3093a3140 > # CONFIG_VIDEO_DT3155 is not set 3302a3350 > CONFIG_DVB_CX24120=m 3403a3452 > # CONFIG_DRM_AMDGPU is not set 3417a3467 > # CONFIG_DRM_VIRTIO_GPU is not set 3546a3597 > CONFIG_SND_PROC_FS=y 3551d3601 < CONFIG_SND_KCTL_JACK=y 3643d3692 < CONFIG_SND_HDA_PREALLOC_SIZE=64 3647d3695 < # CONFIG_SND_HDA_INPUT_JACK is not set 3663a3712 > CONFIG_SND_HDA_PREALLOC_SIZE=64 3799a3849 > # CONFIG_USB_ULPI_BUS is not set 4012a4063 > # CONFIG_MMC_MTK is not set 4040a4092 > # CONFIG_LEDS_TLC591XX is not set 4080d4131 < # CONFIG_MLX5_INFINIBAND is not set 4088a4140,4141 > CONFIG_EDAC_ATOMIC_SCRUB=y > CONFIG_EDAC_SUPPORT=y 4093d4145 < CONFIG_RTC_SYSTOHC=y 4094a4147,4148 > CONFIG_RTC_SYSTOHC=y > CONFIG_RTC_SYSTOHC_DEVICE="rtc0" 4161d4214 < # CONFIG_RTC_DRV_XGENE is not set 4202a4256 > # CONFIG_UIO_PRUSS is not set 4230a4285 > # CONFIG_DELL_RBTN is not set 4264a4320 > # CONFIG_INTEL_PMC_IPC is not set 4307a4364 > # CONFIG_SUNXI_SRAM is not set 4339a4397,4398 > # CONFIG_STK8312 is not set > # CONFIG_STK8BA50 is not set 4370a4430 > # CONFIG_M62332 is not set 4409a4470 > # CONFIG_ACPI_ALS is not set 4412a4474 > # CONFIG_BH1750 is not set 4422a4485 > # CONFIG_STK3310 is not set 4435a4499 > # CONFIG_MMC35240 is not set 4436a4501 > # CONFIG_BMC150_MAGN is not set 4481a4547,4548 > # CONFIG_PHY_PXA_28NM_HSIC is not set > # CONFIG_PHY_PXA_28NM_USB2 is not set 4491a4559,4563 > CONFIG_LIBNVDIMM=y > # CONFIG_BLK_DEV_PMEM is not set > CONFIG_ND_BLK=y > CONFIG_ND_BTT=y > CONFIG_BTT=y 4510a4583 > CONFIG_EFI_ESRT=y 4633a4707 > # CONFIG_PROC_CHILDREN is not set 4717,4718c4791 < CONFIG_SUNRPC_XPRT_RDMA_CLIENT=m < CONFIG_SUNRPC_XPRT_RDMA_SERVER=m --- > CONFIG_SUNRPC_XPRT_RDMA=m 4729a4803 > # CONFIG_CIFS_SMB311 is not set 4842d4915 < CONFIG_KASAN_SHADOW_OFFSET=0xdffffc0000000000 4861a4935 > CONFIG_SCHED_INFO=y 4899a4974 > # CONFIG_RCU_EQS_DEBUG is not set 4997a5073 > # CONFIG_DEBUG_ENTRY is not set 4999a5076,5077 > CONFIG_X86_DEBUG_FPU=y > # CONFIG_PUNIT_ATOM_DEBUG is not set 5059a5138 > CONFIG_CRYPTO_RNG_DEFAULT=m 5061a5141,5143 > CONFIG_CRYPTO_AKCIPHER2=y > CONFIG_CRYPTO_AKCIPHER=m > CONFIG_CRYPTO_RSA=m 5081a5164 > # CONFIG_CRYPTO_CHACHA20POLY1305 is not set 5082a5166 > CONFIG_CRYPTO_ECHAINIV=m 5112a5197 > # CONFIG_CRYPTO_POLY1305 is not set 5156a5242 > # CONFIG_CRYPTO_CHACHA20 is not set 5174a5261 > # CONFIG_CRYPTO_842 is not set 5182c5269,5274 < # CONFIG_CRYPTO_DRBG_MENU is not set --- > CONFIG_CRYPTO_DRBG_MENU=m > CONFIG_CRYPTO_DRBG_HMAC=y > # CONFIG_CRYPTO_DRBG_HASH is not set > # CONFIG_CRYPTO_DRBG_CTR is not set > CONFIG_CRYPTO_DRBG=m > CONFIG_CRYPTO_JITTERENTROPY=m 5186a5279 > # CONFIG_CRYPTO_USER_API_AEAD is not set 5234a5328 > CONFIG_PERCPU_RWSEM=y 5302a5397 > CONFIG_ARCH_HAS_PMEM_API=y
Created attachment 410946 [details] 4.2.0-r1-config
Created attachment 410948 [details] 4.1.6-config
is this 'make -j9' when compiling 4.2.0-r1, or when building things after booting your compiled 4.2.0-r1 kernel?
With taskset processes loads defined cores. Why kernel does not balancing of cores load like in older kernels?
>is this 'make -j9' when compiling 4.2.0-r1, or when building things after booting your compiled 4.2.0-r1 kernel? I ran make -j9 after booting into new kernel (4.2.0-r1).
This is a duplicate of bug #559382
(In reply to Andrei Slavoiu from comment #6) Right. But nevertheless, thanks for reporting - since it shows that bug #559382 hasn't been fixed in 4.2.0-r1. *** This bug has been marked as a duplicate of bug 559382 ***
