# git rev-parse -q --verify 522f155b1e573236a92cea2f173046ca43070a73^{commit} 522f155b1e573236a92cea2f173046ca43070a73 already have revision, skipping fetch # git checkout -q -f -B kisskb 522f155b1e573236a92cea2f173046ca43070a73 # git clean -qxdf # < git log -1 # commit 522f155b1e573236a92cea2f173046ca43070a73 # Author: Aneesh Kumar K.V # Date: Mon Apr 16 16:57:24 2018 +0530 # # powerpc/book3s64: Enable split pmd ptlock. # # Testing with a threaded version of mmap_bench which allocate 1G chunks and # with large number of threads we find: # # without patch # # 32.72% mmap_bench [kernel.vmlinux] [k] do_raw_spin_lock # | # ---do_raw_spin_lock # | # --32.68%--0 # | # |--15.82%--pte_fragment_alloc # | | # | --15.79%--do_huge_pmd_anonymous_page # | __handle_mm_fault # | handle_mm_fault # | __do_page_fault # | handle_page_fault # | test_mmap # | test_mmap # | start_thread # | __clone # | # |--14.95%--do_huge_pmd_anonymous_page # | __handle_mm_fault # | handle_mm_fault # | __do_page_fault # | handle_page_fault # | test_mmap # | test_mmap # | start_thread # | __clone # | # # with patch # # 12.89% mmap_bench [kernel.vmlinux] [k] do_raw_spin_lock # | # ---do_raw_spin_lock # | # --12.83%--0 # | # |--3.21%--pagevec_lru_move_fn # | __lru_cache_add # | | # | --2.74%--do_huge_pmd_anonymous_page # | __handle_mm_fault # | handle_mm_fault # | __do_page_fault # | handle_page_fault # | test_mmap # | test_mmap # | start_thread # | __clone # | # |--3.11%--do_huge_pmd_anonymous_page # | __handle_mm_fault # | handle_mm_fault # | __do_page_fault # | handle_page_fault # | test_mmap # | test_mmap # | start_thread # | __clone # # ..... # | # --0.55%--pte_fragment_alloc # | # --0.55%--do_huge_pmd_anonymous_page # __handle_mm_fault # handle_mm_fault # __do_page_fault # handle_page_fault # test_mmap # test_mmap # start_thread # __clone # # Signed-off-by: Aneesh Kumar K.V # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 522f155b1e573236a92cea2f173046ca43070a73 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_smp_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- mpc85xx_smp_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_smp_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount': /kisskb/src/kernel/cgroup/cgroup-v1.c:1268:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/wm8960.c: In function 'wm8960_configure_clocking': /kisskb/src/sound/soc/codecs/wm8960.c:803:70: warning: 'j' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/wm8960.c:800:68: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2497:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1819:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page': /kisskb/src/mm/hugetlb.c:1433:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c: In function 'allocate_bd': /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:139:6: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:340:21: note: 'pdeo' was declared here /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here arch/powerpc/boot/tqm8548.dtb: Warning (pci_bridge): /pcie@e000a000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/tqm8548.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/mpc8568mds.dtb: Warning (pci_bridge): /pcie@e000a000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/mpc8568mds.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/mpc8555cds.dtb: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) arch/powerpc/boot/mpc8541cds.dtb: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) arch/powerpc/boot/mpc8544ds.dtb: Warning (pci_bridge): /pcie@e0009000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/mpc8544ds.dtb: Warning (pci_bridge): /pcie@e000a000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/mpc8544ds.dtb: Warning (pci_bridge): /pcie@e000b000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/mpc8544ds.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/mpc8548cds_32b.dtb: Warning (pci_bridge): /pcie@e000a000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/mpc8548cds_32b.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/mpc8572ds.dtb: Warning (pci_bridge): /pcie@ffe08000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/mpc8572ds.dtb: Warning (pci_bridge): /pcie@ffe09000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/mpc8572ds.dtb: Warning (pci_bridge): /pcie@ffe0a000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/mpc8572ds.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/sbc8548.dtb: Warning (pci_bridge): /pcie@e000a000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/sbc8548.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' INFO: Uncompressed kernel (size 0xbf1368) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbf1368) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbf1368) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbf1368) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbf1368) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbf1368) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbf1368) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbf1368) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbf1368) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbf1368) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbf1368) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbf1368) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbf1368) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbf1368) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbf1368) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xbe0be4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:40:59 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5788901 Bytes = 5653.22 kB = 5.52 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:40:59 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5788042 Bytes = 5652.38 kB = 5.52 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:40:58 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5787238 Bytes = 5651.60 kB = 5.52 MB Load Address: 00c00000 Entry Point: 00c00288 Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:40:59 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5788118 Bytes = 5652.46 kB = 5.52 MB Load Address: 00c00000 Entry Point: 00c00288 Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:40:58 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5788522 Bytes = 5652.85 kB = 5.52 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:40:58 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5788467 Bytes = 5652.80 kB = 5.52 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:40:59 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5787394 Bytes = 5651.75 kB = 5.52 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:40:59 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5788278 Bytes = 5652.62 kB = 5.52 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:40:59 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5787452 Bytes = 5651.81 kB = 5.52 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:40:59 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5788306 Bytes = 5652.64 kB = 5.52 MB Load Address: 00c00000 Entry Point: 00c00288 Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:40:57 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5763636 Bytes = 5628.55 kB = 5.50 MB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:41:00 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5787396 Bytes = 5651.75 kB = 5.52 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:41:00 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5787236 Bytes = 5651.60 kB = 5.52 MB Load Address: 00c00000 Entry Point: 00c00288 Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:41:01 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5787232 Bytes = 5651.59 kB = 5.52 MB Load Address: 00c00000 Entry Point: 00c00288 Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:41:01 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5787279 Bytes = 5651.64 kB = 5.52 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc3-g522f155 Created: Tue May 15 11:41:01 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5788200 Bytes = 5652.54 kB = 5.52 MB Load Address: 00c00000 Entry Point: 00c00248 Completed OK # rm -rf /kisskb/build/powerpc-next_mpc85xx_smp_defconfig_powerpc # Build took: 0:01:33.713466