Buildresult: powerpc-next/x86_64-allnoconfig/x86_64-gcc4.6 built on May 15 2018, 11:17

kisskb

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Status:	OK
Date/Time:	May 15 2018, 11:17
Duration:	0:01:15.720170
Builder:	ka2
Revision:	powerpc/book3s64: Enable split pmd ptlock. (`522f155b1e573236a92cea2f173046ca43070a73)`
Target:	powerpc-next/x86_64-allnoconfig/x86_64-gcc4.6
Branch:	powerpc-next
Compiler:	x86_64-gcc4.6 (x86_64-linux-gcc (GCC) 4.6.3)
Config:	allnoconfig (download)
Log:	Download original Possible warnings (3) kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] arch/x86/kernel/apic/io_apic.c:1033:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized] arch/x86/kernel/e820.c:650:16: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify 522f155b1e573236a92cea2f173046ca43070a73^{commit} # git fetch -q -n -f git://gitlab.ozlabs.ibm.com/linuxppc/linux.git next-test # git rev-parse -q --verify 522f155b1e573236a92cea2f173046ca43070a73^{commit} 522f155b1e573236a92cea2f173046ca43070a73 # git checkout -q -f -B kisskb 522f155b1e573236a92cea2f173046ca43070a73 # git clean -qxdf # < git log -1 # commit 522f155b1e573236a92cea2f173046ca43070a73 # Author: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> # 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 <aneesh.kumar@linux.vnet.ibm.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < git log --format=%s --max-count=1 522f155b1e573236a92cea2f173046ca43070a73 # < make -s -j 48 ARCH=x86_64 O=/kisskb/build/powerpc-next_x86_64-allnoconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux- allnoconfig # make -s -j 48 ARCH=x86_64 O=/kisskb/build/powerpc-next_x86_64-allnoconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux- /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/arch/x86/kernel/apic/io_apic.c: In function 'mp_map_pin_to_irq': /kisskb/src/arch/x86/kernel/apic/io_apic.c:1033:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/x86/kernel/e820.c: In function 'e820__setup_pci_gap': /kisskb/src/arch/x86/kernel/e820.c:650:16: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized] Completed OK # rm -rf /kisskb/build/powerpc-next_x86_64-allnoconfig_x86_64 # Build took: 0:01:15.720170

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