[2.1.130] High load average appearing from the shadows.

Robert Thoerncrantz (rtz@pirx.df.lth.se)
Mon, 30 Nov 1998 14:11:28 +0100


Sometimes I find that load average rises whithout top showing
any CPU eating processes. The system stays perfectly
responsive as ever, just as if nothing special was going on.

Usually it is stuck at one, and starting top to investigate
gives a load average of about two.

If I start the rc5-client, top shows it at >95% as it should,
and load average slowly gets to almost 3. Then it drops to the
more normal ~1.0 again and everything returns to normal.

I'm trying to reproduce it on demand, but have not had any
luck yet. Am I the only one that experiences this problem with
load average?

The kernel is a vanilla 2.1.130 (UP), but it happened in
2.1.129 (and, I believe, 2.1.128) too, then I thought it was
just some weird effect from the UP-flu.

Linux version 2.1.130 (rtz@pirx) (gcc version 2.7.2.3) #1 Fri Nov \
27 14:34:14 CET 1998

12:53pm up 2 days, 15:30, 3 users, load average: 2.19, 1.69, 1.28
49 processes: 47 sleeping, 2 running, 0 zombie, 0 stopped
CPU states: 5.7% user, 2.8% system, 0.0% nice, 91.7% idle
Mem: 30448K av, 29648K used, 800K free, 12040K shrd, 3216K buff
Swap: 66524K av, 16836K used, 49688K free 11404K cached

PID USER PRI NI PAGEIN SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND
8471 rtz 17 0 233 748 748 568 R 2.6 2.4 0:08 top
251 root 19 0 19552 6776 5068 1548 R 2.4 16.6 76:52 XF86_S3
32753 rtz 8 0 6749 7664 2740 988 S 1.3 8.9 8:59 netscape
31889 rtz 7 0 1792 1156 812 432 S 1.1 2.6 9:43 wish
2111 root 9 0 6753 880 620 496 S 0.9 2.0 0:36 xterm

.config
-------
CONFIG_EXPERIMENTAL=y
CONFIG_M586=y
CONFIG_MATH_EMULATION=y
CONFIG_MTRR=y
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_KMOD=y
CONFIG_NET=y
CONFIG_PCI=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_QUIRKS=y
CONFIG_PCI_OLD_PROC=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_SYSCTL=y
CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=y
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PNP=y
CONFIG_BLK_DEV_FD=m
CONFIG_BLK_DEV_IDE=y
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDESCSI=m
CONFIG_BLK_DEV_CMD640=y
CONFIG_BLK_DEV_RZ1000=y
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_IDEDMA_AUTO=y
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_BLK_DEV_XD=m
CONFIG_PARIDE_PARPORT=m
CONFIG_PARIDE=m
CONFIG_PARIDE_PD=m
CONFIG_PARIDE_PCD=m
CONFIG_PARIDE_PF=m
CONFIG_PARIDE_PT=m
CONFIG_PARIDE_PG=m
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_SYN_COOKIES=y
CONFIG_IP_NOSR=y
CONFIG_SKB_LARGE=y
CONFIG_ATALK=m
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=y
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_BUSLOGIC=y
CONFIG_SCSI_OMIT_FLASHPOINT=y
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_NET_ETHERNET=y
CONFIG_NET_VENDOR_3COM=y
CONFIG_EL1=m
CONFIG_EL2=m
CONFIG_ELPLUS=m
CONFIG_EL16=m
CONFIG_EL3=m
CONFIG_3C515=m
CONFIG_VORTEX=m
CONFIG_NET_EISA=y
CONFIG_EEXPRESS_PRO100=y
CONFIG_IPDDP=m
CONFIG_PLIP=m
CONFIG_PPP=m
CONFIG_SLIP=m
CONFIG_SLIP_SMART=y
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_SERIAL=y
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=m
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
CONFIG_82C710_MOUSE=y
CONFIG_VIDEO_DEV=m
CONFIG_RADIO_RTRACK=m
CONFIG_RADIO_RTRACK2=m
CONFIG_RADIO_AZTECH=m
CONFIG_RADIO_MIROPCM20=m
CONFIG_VIDEO_BT848=m
CONFIG_VIDEO_BWQCAM=m
CONFIG_VIDEO_CQCAM=m
CONFIG_VIDEO_PMS=m
CONFIG_VIDEO_SAA5249=m
CONFIG_RADIO_SF16FMI=m
CONFIG_RADIO_ZOLTRIX=m
CONFIG_NVRAM=m
CONFIG_JOYSTICK=m
CONFIG_QUOTA=y
CONFIG_MINIX_FS=m
CONFIG_EXT2_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_UMSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_PROC_FS=y
CONFIG_NFS_FS=y
CONFIG_NFSD=y
CONFIG_NFSD_SUN=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_CODA_FS=y
CONFIG_SMB_FS=y
CONFIG_SMB_WIN95=y
CONFIG_NCP_FS=m
CONFIG_NCPFS_STRONG=y
CONFIG_NCPFS_NFS_NS=y
CONFIG_NCPFS_OS2_NS=y
CONFIG_NCPFS_MOUNT_SUBDIR=y
CONFIG_HPFS_FS=m
CONFIG_NTFS_FS=m
CONFIG_NTFS_RW=y
CONFIG_SYSV_FS=m
CONFIG_AFFS_FS=m
CONFIG_HFS_FS=m
CONFIG_ROMFS_FS=y
CONFIG_AUTOFS_FS=y
CONFIG_AMIGA_PARTITION=y
CONFIG_UFS_FS=m
CONFIG_BSD_DISKLABEL=y
CONFIG_SMD_DISKLABEL=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_DEVPTS_FS=y
CONFIG_ADFS_FS=m
CONFIG_QNX4FS_FS=m
CONFIG_QNX4FS_RW=y
CONFIG_MAC_PARTITION=y
CONFIG_NLS=y
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_KOI8_R=m
CONFIG_VGA_CONSOLE=y
CONFIG_VIDEO_SELECT=y
CONFIG_FB=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_FB_VESA=y
CONFIG_VIDEO_SELECT=y
CONFIG_FBCON_CFB8=y
CONFIG_FBCON_CFB16=y
CONFIG_FBCON_CFB24=y
CONFIG_FBCON_CFB32=y
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_SOUND=y
CONFIG_SOUND_OSS=y
CONFIG_SOUND_SB=y
CONFIG_SB_BASE=220
CONFIG_SB_IRQ=7
CONFIG_SB_DMA=1
CONFIG_SB_DMA2=5
CONFIG_SB_MPU_BASE=330
CONFIG_SB_MPU_IRQ=-1
CONFIG_MAGIC_SYSRQ=y

-- 
Robert Thörncrantz                                 rtz@pirx.df.lth.se
Mundus Vult Decipi                              dat95rth@ludat.lth.se
Pgp Key: 0xB30D8661;                5B4617EACD4C0AF1 EF8E3D3FF91523B2

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