Messages in this thread | | | Date | Sun, 2 Mar 2003 14:10:37 -0800 | From | William Lee Irwin III <> | Subject | Re: percpu-2.5.63-bk5-1 (properly generated) |
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At some point in the past, I wrote: >> There's a relatively large (12s/44s == 27%) difference between absolute >> timings on our machines, which suggests a large disturbance in the force. >> 2.5.63-bk5 virgin appears to get timings in the low 40's.
On Sun, Mar 02, 2003 at 01:58:58PM -0800, Martin J. Bligh wrote: > Did you actually read the previous email? > Same config file? Same tree? same compiler (gcc 2.95.4?)
gcc2.95.4; 2.5.63-bk5 w/& w/o, no patchkits prior, .config below
At some point in the past, I wrote: >> From the profile posted it's the division in page_zone().
On Sun, Mar 02, 2003 at 01:58:58PM -0800, Martin J. Bligh wrote: > I think we're talking about different things: > 1. Need to isolate what's causing the 6s improvement you're seeing. > Can you generate profiles & time output for before and after the patch, > and describe the test you're running (presumably make -j). > 2. SDET degredation. I'll try the additional patch you sent out on that.
It's not hard to figure out. > 60 125.0% page_address > 12 63.2% __pagevec_lru_add_active > 11 47.8% bad_range > 10 15.9% kmap_atomic
All users of page_zone(). The question you're (hopefully) about to answer is whether it was the division or something else like codesize or the newly introduced indirection.
If that is still seeing page_zone() suckage, I'll rip zone_table[] out of it entirely.
-- wli
# # Automatically generated make config: don't edit # CONFIG_X86=y CONFIG_MMU=y CONFIG_SWAP=y CONFIG_UID16=y CONFIG_GENERIC_ISA_DMA=y
# # Code maturity level options # CONFIG_EXPERIMENTAL=y
# # General setup # CONFIG_SYSVIPC=y # CONFIG_BSD_PROCESS_ACCT is not set CONFIG_SYSCTL=y CONFIG_LOG_BUF_SHIFT=17
# # Loadable module support # CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y CONFIG_OBSOLETE_MODPARM=y # CONFIG_MODVERSIONS is not set CONFIG_KMOD=y
# # Processor type and features # # CONFIG_X86_PC is not set # CONFIG_X86_VOYAGER is not set CONFIG_X86_NUMAQ=y # CONFIG_X86_SUMMIT is not set # CONFIG_X86_BIGSMP is not set # CONFIG_X86_VISWS is not set # CONFIG_M386 is not set # CONFIG_M486 is not set # CONFIG_M586 is not set # CONFIG_M586TSC is not set # CONFIG_M586MMX is not set # CONFIG_M686 is not set # CONFIG_MPENTIUMII is not set CONFIG_MPENTIUMIII=y # CONFIG_MPENTIUM4 is not set # CONFIG_MK6 is not set # CONFIG_MK7 is not set # CONFIG_MK8 is not set # CONFIG_MELAN is not set # CONFIG_MCRUSOE is not set # CONFIG_MWINCHIPC6 is not set # CONFIG_MWINCHIP2 is not set # CONFIG_MWINCHIP3D is not set # CONFIG_MCYRIXIII is not set # CONFIG_MVIAC3_2 is not set CONFIG_X86_CMPXCHG=y CONFIG_X86_XADD=y CONFIG_X86_L1_CACHE_SHIFT=5 CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_X86_WP_WORKS_OK=y CONFIG_X86_INVLPG=y CONFIG_X86_BSWAP=y CONFIG_X86_POPAD_OK=y CONFIG_X86_GOOD_APIC=y CONFIG_X86_INTEL_USERCOPY=y CONFIG_X86_USE_PPRO_CHECKSUM=y CONFIG_X86_PREFETCH=y CONFIG_HUGETLB_PAGE=y CONFIG_SMP=y # CONFIG_PREEMPT is not set CONFIG_X86_LOCAL_APIC=y CONFIG_X86_IO_APIC=y CONFIG_NR_CPUS=32 CONFIG_NUMA=y CONFIG_DISCONTIGMEM=y CONFIG_HAVE_ARCH_BOOTMEM_NODE=y # CONFIG_X86_MCE is not set # CONFIG_TOSHIBA is not set # CONFIG_I8K is not set # CONFIG_MICROCODE is not set # CONFIG_X86_MSR is not set # CONFIG_X86_CPUID is not set # CONFIG_EDD is not set # CONFIG_NOHIGHMEM is not set # CONFIG_HIGHMEM4G is not set CONFIG_HIGHMEM64G=y CONFIG_HIGHMEM=y CONFIG_X86_PAE=y CONFIG_HIGHPTE=y # CONFIG_MATH_EMULATION is not set CONFIG_MTRR=y CONFIG_HAVE_DEC_LOCK=y
# # Power management options (ACPI, APM) # # CONFIG_PM is not set
# # ACPI Support # # CONFIG_ACPI is not set
# # CPU Frequency scaling # # CONFIG_CPU_FREQ is not set
# # Bus options (PCI, PCMCIA, EISA, MCA, ISA) # CONFIG_PCI=y # CONFIG_PCI_GOBIOS is not set CONFIG_PCI_GODIRECT=y # CONFIG_PCI_GOANY is not set CONFIG_PCI_DIRECT=y # CONFIG_SCx200 is not set CONFIG_PCI_LEGACY_PROC=y CONFIG_PCI_NAMES=y CONFIG_ISA=y # CONFIG_EISA is not set # CONFIG_MCA is not set # CONFIG_HOTPLUG is not set
# # Executable file formats # CONFIG_KCORE_ELF=y # CONFIG_KCORE_AOUT is not set CONFIG_BINFMT_AOUT=y CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=y
# # Memory Technology Devices (MTD) # # CONFIG_MTD is not set
# # Parallel port support # # CONFIG_PARPORT is not set
# # Plug and Play support # # CONFIG_PNP is not set
# # Block devices # CONFIG_BLK_DEV_FD=y # CONFIG_BLK_DEV_XD is not set # CONFIG_BLK_CPQ_DA is not set # CONFIG_BLK_CPQ_CISS_DA is not set # CONFIG_BLK_DEV_DAC960 is not set # CONFIG_BLK_DEV_UMEM is not set CONFIG_BLK_DEV_LOOP=y # CONFIG_BLK_DEV_NBD is not set # CONFIG_BLK_DEV_RAM is not set CONFIG_LBD=y
# # ATA/ATAPI/MFM/RLL device support # # CONFIG_IDE is not set
# # SCSI device support # CONFIG_SCSI=y
# # SCSI support type (disk, tape, CD-ROM) # CONFIG_BLK_DEV_SD=y # CONFIG_CHR_DEV_ST is not set # CONFIG_CHR_DEV_OSST is not set # CONFIG_BLK_DEV_SR is not set # CONFIG_CHR_DEV_SG is not set
# # Some SCSI devices (e.g. CD jukebox) support multiple LUNs # CONFIG_SCSI_MULTI_LUN=y # CONFIG_SCSI_REPORT_LUNS is not set CONFIG_SCSI_CONSTANTS=y # CONFIG_SCSI_LOGGING is not set
# # SCSI low-level drivers # # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_7000FASST is not set # CONFIG_SCSI_ACARD is not set # CONFIG_SCSI_AHA152X is not set # CONFIG_SCSI_AHA1542 is not set # CONFIG_SCSI_AACRAID is not set CONFIG_SCSI_AIC7XXX=m CONFIG_AIC7XXX_CMDS_PER_DEVICE=253 CONFIG_AIC7XXX_RESET_DELAY_MS=15000 # CONFIG_AIC7XXX_PROBE_EISA_VL is not set # CONFIG_AIC7XXX_BUILD_FIRMWARE is not set CONFIG_AIC7XXX_DEBUG_ENABLE=y CONFIG_AIC7XXX_DEBUG_MASK=0 CONFIG_AIC7XXX_REG_PRETTY_PRINT=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_DPT_I2O is not set # CONFIG_SCSI_ADVANSYS is not set # CONFIG_SCSI_IN2000 is not set # CONFIG_SCSI_AM53C974 is not set # CONFIG_SCSI_MEGARAID is not set # CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_CPQFCTS is not set # CONFIG_SCSI_DMX3191D is not set # CONFIG_SCSI_DTC3280 is not set # CONFIG_SCSI_EATA is not set # CONFIG_SCSI_EATA_PIO is not set # CONFIG_SCSI_FUTURE_DOMAIN is not set # CONFIG_SCSI_GDTH is not set # CONFIG_SCSI_GENERIC_NCR5380 is not set # CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set # CONFIG_SCSI_NCR53C406A is not set # CONFIG_SCSI_NCR53C7xx is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_NCR53C8XX is not set # CONFIG_SCSI_SYM53C8XX is not set # CONFIG_SCSI_PAS16 is not set # CONFIG_SCSI_PCI2000 is not set # CONFIG_SCSI_PCI2220I is not set # CONFIG_SCSI_PSI240I is not set # CONFIG_SCSI_QLOGIC_FAS is not set CONFIG_SCSI_QLOGIC_ISP=y # CONFIG_SCSI_QLOGIC_FC is not set # CONFIG_SCSI_QLOGIC_1280 is not set # CONFIG_SCSI_SEAGATE is not set # CONFIG_SCSI_SYM53C416 is not set # CONFIG_SCSI_DC390T is not set # CONFIG_SCSI_T128 is not set # CONFIG_SCSI_U14_34F is not set # CONFIG_SCSI_ULTRASTOR is not set # CONFIG_SCSI_NSP32 is not set # CONFIG_SCSI_DEBUG is not set
# # Old CD-ROM drivers (not SCSI, not IDE) # # CONFIG_CD_NO_IDESCSI is not set
# # Multi-device support (RAID and LVM) # # CONFIG_MD is not set
# # Fusion MPT device support # # CONFIG_FUSION is not set
# # IEEE 1394 (FireWire) support (EXPERIMENTAL) # # CONFIG_IEEE1394 is not set
# # I2O device support # # CONFIG_I2O is not set
# # Networking support # CONFIG_NET=y
# # Networking options # CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set # CONFIG_NETLINK_DEV is not set # CONFIG_NETFILTER is not set # CONFIG_FILTER is not set CONFIG_UNIX=y # CONFIG_NET_KEY is not set CONFIG_INET=y CONFIG_IP_MULTICAST=y # CONFIG_IP_ADVANCED_ROUTER is not set # CONFIG_IP_PNP is not set # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE is not set # CONFIG_IP_MROUTE is not set # CONFIG_ARPD is not set # CONFIG_INET_ECN is not set # CONFIG_SYN_COOKIES is not set # CONFIG_INET_AH is not set # CONFIG_INET_ESP is not set # CONFIG_XFRM_USER is not set # CONFIG_IPV6 is not set
# # SCTP Configuration (EXPERIMENTAL) # CONFIG_IPV6_SCTP__=y # CONFIG_IP_SCTP is not set # CONFIG_ATM is not set # CONFIG_VLAN_8021Q is not set # CONFIG_LLC is not set # CONFIG_DECNET is not set # CONFIG_BRIDGE is not set # CONFIG_X25 is not set # CONFIG_LAPB is not set # CONFIG_NET_DIVERT is not set # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_NET_FASTROUTE is not set # CONFIG_NET_HW_FLOWCONTROL is not set
# # QoS and/or fair queueing # # CONFIG_NET_SCHED is not set
# # Network testing # # CONFIG_NET_PKTGEN is not set CONFIG_NETDEVICES=y
# # ARCnet devices # # CONFIG_ARCNET is not set CONFIG_DUMMY=m # CONFIG_BONDING is not set # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set # CONFIG_ETHERTAP is not set
# # Ethernet (10 or 100Mbit) # CONFIG_NET_ETHERNET=y # CONFIG_MII is not set # CONFIG_HAPPYMEAL is not set # CONFIG_SUNGEM is not set # CONFIG_NET_VENDOR_3COM is not set # CONFIG_LANCE is not set # CONFIG_NET_VENDOR_SMC is not set # CONFIG_NET_VENDOR_RACAL is not set
# # Tulip family network device support # CONFIG_NET_TULIP=y CONFIG_DE2104X=y CONFIG_TULIP=y # CONFIG_TULIP_MWI is not set CONFIG_TULIP_MMIO=y # CONFIG_DE4X5 is not set # CONFIG_WINBOND_840 is not set # CONFIG_DM9102 is not set # CONFIG_AT1700 is not set # CONFIG_DEPCA is not set # CONFIG_HP100 is not set # CONFIG_NET_ISA is not set CONFIG_NET_PCI=y # CONFIG_PCNET32 is not set # CONFIG_AMD8111_ETH is not set CONFIG_ADAPTEC_STARFIRE=y # CONFIG_ADAPTEC_STARFIRE_NAPI is not set # CONFIG_AC3200 is not set # CONFIG_APRICOT is not set # CONFIG_B44 is not set # CONFIG_CS89x0 is not set # CONFIG_DGRS is not set # CONFIG_EEPRO100 is not set # CONFIG_E100 is not set # CONFIG_FEALNX is not set # CONFIG_NATSEMI is not set # CONFIG_NE2K_PCI is not set # CONFIG_8139CP is not set # CONFIG_8139TOO is not set # CONFIG_SIS900 is not set # CONFIG_EPIC100 is not set # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set # CONFIG_VIA_RHINE is not set # CONFIG_NET_POCKET is not set
# # Ethernet (1000 Mbit) # # CONFIG_ACENIC is not set # CONFIG_DL2K is not set # CONFIG_E1000 is not set # CONFIG_NS83820 is not set # CONFIG_HAMACHI is not set # CONFIG_YELLOWFIN is not set # CONFIG_R8169 is not set # CONFIG_SK98LIN is not set # CONFIG_TIGON3 is not set # CONFIG_FDDI is not set # CONFIG_HIPPI is not set # CONFIG_PPP is not set # CONFIG_SLIP is not set
# # Wireless LAN (non-hamradio) # # CONFIG_NET_RADIO is not set
# # Token Ring devices (depends on LLC=y) # # CONFIG_NET_FC is not set # CONFIG_RCPCI is not set # CONFIG_SHAPER is not set
# # Wan interfaces # # CONFIG_WAN is not set
# # Amateur Radio support # # CONFIG_HAMRADIO is not set
# # IrDA (infrared) support # # CONFIG_IRDA is not set
# # ISDN subsystem # # CONFIG_ISDN_BOOL is not set
# # Telephony Support # # CONFIG_PHONE is not set
# # Input device support # CONFIG_INPUT=y
# # Userland interfaces # # CONFIG_INPUT_MOUSEDEV is not set # CONFIG_INPUT_JOYDEV is not set # CONFIG_INPUT_TSDEV is not set # CONFIG_INPUT_EVDEV is not set # CONFIG_INPUT_EVBUG is not set
# # Input I/O drivers # # CONFIG_GAMEPORT is not set CONFIG_SOUND_GAMEPORT=y # CONFIG_SERIO is not set
# # Input Device Drivers # CONFIG_INPUT_KEYBOARD=y CONFIG_INPUT_MOUSE=y # CONFIG_MOUSE_INPORT is not set # CONFIG_MOUSE_LOGIBM is not set # CONFIG_MOUSE_PC110PAD is not set # CONFIG_INPUT_JOYSTICK is not set # CONFIG_INPUT_TOUCHSCREEN is not set CONFIG_INPUT_MISC=y CONFIG_INPUT_PCSPKR=y # CONFIG_INPUT_UINPUT is not set
# # Character devices # CONFIG_VT=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y # CONFIG_SERIAL_NONSTANDARD is not set
# # Serial drivers # CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y # CONFIG_SERIAL_8250_EXTENDED is not set
# # Non-8250 serial port support # CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y CONFIG_UNIX98_PTYS=y CONFIG_UNIX98_PTY_COUNT=256
# # I2C support # # CONFIG_I2C is not set
# # I2C Hardware Sensors Mainboard support #
# # I2C Hardware Sensors Chip support #
# # Mice # # CONFIG_BUSMOUSE is not set # CONFIG_QIC02_TAPE is not set
# # IPMI # # CONFIG_IPMI_HANDLER is not set
# # Watchdog Cards # # CONFIG_WATCHDOG is not set # CONFIG_INTEL_RNG is not set # CONFIG_AMD_RNG is not set # CONFIG_NVRAM is not set # CONFIG_RTC is not set CONFIG_GEN_RTC=y # CONFIG_GEN_RTC_X is not set # CONFIG_DTLK is not set # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set # CONFIG_SONYPI is not set
# # Ftape, the floppy tape device driver # # CONFIG_FTAPE is not set # CONFIG_AGP is not set # CONFIG_DRM is not set # CONFIG_MWAVE is not set # CONFIG_RAW_DRIVER is not set # CONFIG_HANGCHECK_TIMER is not set
# # Multimedia devices # # CONFIG_VIDEO_DEV is not set
# # File systems # # CONFIG_QUOTA is not set # CONFIG_AUTOFS_FS is not set CONFIG_AUTOFS4_FS=y # CONFIG_REISERFS_FS is not set # CONFIG_ADFS_FS is not set # CONFIG_AFFS_FS is not set # CONFIG_HFS_FS is not set # CONFIG_BEFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EXT3_FS is not set # CONFIG_JBD is not set # CONFIG_FAT_FS is not set # CONFIG_EFS_FS is not set # CONFIG_CRAMFS is not set CONFIG_TMPFS=y CONFIG_RAMFS=y CONFIG_HUGETLBFS=y CONFIG_ISO9660_FS=y # CONFIG_JOLIET is not set # CONFIG_ZISOFS is not set CONFIG_JFS_FS=y # CONFIG_JFS_POSIX_ACL is not set # CONFIG_JFS_DEBUG is not set # CONFIG_JFS_STATISTICS is not set CONFIG_MINIX_FS=y # CONFIG_VXFS_FS is not set # CONFIG_NTFS_FS is not set # CONFIG_HPFS_FS is not set CONFIG_PROC_FS=y # CONFIG_DEVFS_FS is not set CONFIG_DEVPTS_FS=y # CONFIG_QNX4FS_FS is not set # CONFIG_ROMFS_FS is not set CONFIG_EXT2_FS=y # CONFIG_EXT2_FS_XATTR is not set # CONFIG_SYSV_FS is not set # CONFIG_UDF_FS is not set # CONFIG_UFS_FS is not set # CONFIG_XFS_FS is not set
# # Network File Systems # # CONFIG_CODA_FS is not set # CONFIG_INTERMEZZO_FS is not set CONFIG_NFS_FS=y # CONFIG_NFS_V3 is not set # CONFIG_NFS_V4 is not set CONFIG_NFSD=y # CONFIG_NFSD_V3 is not set # CONFIG_NFSD_TCP is not set CONFIG_SUNRPC=y # CONFIG_SUNRPC_GSS is not set CONFIG_LOCKD=y CONFIG_EXPORTFS=y # CONFIG_CIFS is not set # CONFIG_SMB_FS is not set # CONFIG_NCP_FS is not set # CONFIG_AFS_FS is not set
# # Partition Types # # CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y CONFIG_NLS=y
# # Native Language Support # CONFIG_NLS_DEFAULT="iso8859-1" # CONFIG_NLS_CODEPAGE_437 is not set # CONFIG_NLS_CODEPAGE_737 is not set # CONFIG_NLS_CODEPAGE_775 is not set # CONFIG_NLS_CODEPAGE_850 is not set # CONFIG_NLS_CODEPAGE_852 is not set # CONFIG_NLS_CODEPAGE_855 is not set # CONFIG_NLS_CODEPAGE_857 is not set # CONFIG_NLS_CODEPAGE_860 is not set # CONFIG_NLS_CODEPAGE_861 is not set # CONFIG_NLS_CODEPAGE_862 is not set # CONFIG_NLS_CODEPAGE_863 is not set # CONFIG_NLS_CODEPAGE_864 is not set # CONFIG_NLS_CODEPAGE_865 is not set # CONFIG_NLS_CODEPAGE_866 is not set # CONFIG_NLS_CODEPAGE_869 is not set # CONFIG_NLS_CODEPAGE_936 is not set # CONFIG_NLS_CODEPAGE_950 is not set # CONFIG_NLS_CODEPAGE_932 is not set # CONFIG_NLS_CODEPAGE_949 is not set # CONFIG_NLS_CODEPAGE_874 is not set # CONFIG_NLS_ISO8859_8 is not set # CONFIG_NLS_CODEPAGE_1250 is not set # CONFIG_NLS_CODEPAGE_1251 is not set # CONFIG_NLS_ISO8859_1 is not set # CONFIG_NLS_ISO8859_2 is not set # CONFIG_NLS_ISO8859_3 is not set # CONFIG_NLS_ISO8859_4 is not set # CONFIG_NLS_ISO8859_5 is not set # CONFIG_NLS_ISO8859_6 is not set # CONFIG_NLS_ISO8859_7 is not set # CONFIG_NLS_ISO8859_9 is not set # CONFIG_NLS_ISO8859_13 is not set # CONFIG_NLS_ISO8859_14 is not set # CONFIG_NLS_ISO8859_15 is not set # CONFIG_NLS_KOI8_R is not set # CONFIG_NLS_KOI8_U is not set # CONFIG_NLS_UTF8 is not set
# # Graphics support # # CONFIG_FB is not set # CONFIG_VIDEO_SELECT is not set
# # Console display driver support # CONFIG_VGA_CONSOLE=y # CONFIG_MDA_CONSOLE is not set CONFIG_DUMMY_CONSOLE=y
# # Sound # # CONFIG_SOUND is not set
# # USB support # # CONFIG_USB is not set
# # Bluetooth support # # CONFIG_BT is not set
# # Profiling support # # CONFIG_PROFILING is not set
# # Kernel hacking # CONFIG_DEBUG_KERNEL=y CONFIG_DEBUG_STACKOVERFLOW=y # CONFIG_DEBUG_SLAB is not set # CONFIG_DEBUG_IOVIRT is not set CONFIG_MAGIC_SYSRQ=y CONFIG_DEBUG_SPINLOCK=y CONFIG_DEBUG_HIGHMEM=y CONFIG_KALLSYMS=y CONFIG_DEBUG_SPINLOCK_SLEEP=y CONFIG_FRAME_POINTER=y CONFIG_X86_EXTRA_IRQS=y CONFIG_X86_FIND_SMP_CONFIG=y CONFIG_X86_MPPARSE=y
# # Security options # # CONFIG_SECURITY is not set
# # Cryptographic options # # CONFIG_CRYPTO is not set
# # Library routines # CONFIG_CRC32=y CONFIG_X86_SMP=y CONFIG_X86_HT=y CONFIG_X86_BIOS_REBOOT=y CONFIG_X86_TRAMPOLINE=y - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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