Linux за българи: Форуми

Total DISK READ: 9.74 K/s | Total DISK WRITE: 0.00 B/s
  PID  PRIO  USER     DISK READ  DISK WRITE  SWAPIN     IO> COMMAND                                                       
19116 be/4 senser      3.90 K/s    0.00 B/s  0.00 %  0.91 % python2.6 /usr/bin/iotop -Po -d 4
 7520 be/4 senser    997.33 B/s    0.00 B/s  0.00 %  0.03 % firefox --sm-config-prefix /fire~012899100000311450025 --screen 0
 9395 be/4 mysql       4.87 K/s    0.00 B/s  0.04 %  0.00 % mysqld --defaults-file=/etc/mysq~cket=/var/run/mysqld/mysqld.sock

hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   950 MB in  2.00 seconds = 474.45 MB/sec
 Timing buffered disk reads:   88 MB in  3.03 seconds =  29.03 MB/sec

# less /proc/1/io

rchar: 157786078883
wchar: 65325745653
syscr: 906017819
syscw: 168525258
read_bytes: 47304096768
write_bytes: 17572843520
cancelled_write_bytes: 2679222272

dd if=/dev/zero of=/mnt/test bs=512k count=1024
1024+0 records in
1024+0 records out
536870912 bytes (537 MB) copied, 29.1484 s, 18.4 MB/s

hdparm -i /dev/sda

/dev/sda:

 Model=SAMSUNG MP0804H, FwRev=UE100-14, SerialNo=S042J10Y814823
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
 RawCHS=16383/16/63, TrkSize=34902, SectSize=554, ECCbytes=4
 BuffType=DualPortCache, BuffSize=8192kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=156301488
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4 
 DMA modes:  mdma0 mdma1 mdma2 
 UDMA modes: udma0 udma1 *udma2 udma3 udma4 udma5 
 AdvancedPM=yes: unknown setting WriteCache=enabled
 Drive conforms to: ATA/ATAPI-7 T13 1532D revision 0:  ATA/ATAPI-1,2,3,4,5,6,7

ata1.00: limited to UDMA/33 due to 40-wire cable

less /proc/interrupts
           CPU0       
  0:   10791420   IO-APIC-edge      timer
  1:      48141   IO-APIC-edge      i8042
  8:          1   IO-APIC-edge      rtc0
 10:    1039416   IO-APIC-fasteoi   acpi
 12:     128372   IO-APIC-edge      i8042
 14:     312380   IO-APIC-edge      pata_sis
 15:     416649   IO-APIC-edge      pata_sis
 17:         14   IO-APIC-fasteoi   yenta, yenta
 18:    1276141   IO-APIC-fasteoi   SiS SI7013 Modem, SiS SI7012
 19:    1076192   IO-APIC-fasteoi   ohci1394, b43
 20:     393121   IO-APIC-fasteoi   ohci_hcd:usb2
 21:     131135   IO-APIC-fasteoi   ohci_hcd:usb3
 23:         10   IO-APIC-fasteoi   ehci_hcd:usb1
NMI:          0   Non-maskable interrupts
LOC:   11534875   Local timer interrupts
SPU:          0   Spurious interrupts
PMI:          0   Performance monitoring interrupts
PND:          0   Performance pending work
THR:          0   Threshold APIC interrupts
MCE:          0   Machine check exceptions
MCP:        106   Machine check polls
ERR:          4
MIS:          0

sysbench --test=fileio --file-total-size=1500MB --file-test-mode=rndrw run
sysbench 0.4.10:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 1

Extra file open flags: 0
128 files, 11.719Mb each
1.4648Gb total file size
Block size 16Kb
Number of random requests for random IO: 10000
Read/Write ratio for combined random IO test: 1.50
Periodic FSYNC enabled, calling fsync() each 100 requests.
Calling fsync() at the end of test, Enabled.
Using synchronous I/O mode
Doing random r/w test
Threads started!
Done.

Operations performed:  6000 Read, 4000 Write, 12800 Other = 22800 Total
Read 93.75Mb  Written 62.5Mb  Total transferred 156.25Mb  (1.3697Mb/sec)
   87.66 Requests/sec executed

Test execution summary:
    total time:                          114.0749s
    total number of events:              10000
    total time taken by event execution: 76.6723
    per-request statistics:
         min:                                  0.01ms
         avg:                                  7.67ms
         max:                                342.44ms
         approx.  95 percentile:              19.07ms

Threads fairness:
    events (avg/stddev):           10000.0000/0.00
    execution time (avg/stddev):   76.6723/0.00

dmesg  |egrep -i "ide|disk|sda"
Command line: root=/dev/ram0 real_root=/dev/sda5 init=/linuxrc resume2=file:/dev/hda5:0xfc038 resume=UUID:7bc7db8d24134cfdac72d1e63a14fd5e:0x42f68 real_resume=UUID:7bc7db8d24134cfdac72d1e63a14fd5e:0x42f68 splash=verbose,theme:natural_gentoo,fbcon=scrollback:512K vga=791 CONSOLE=/dev/tty1 INPUT_EVDEV=y DEVFS_MOUNT=n acpi_sleep=s3_bios,s3_mode nodevfs udev  memory_corruption_check=1 pci=nomsi
BIOS-provided physical RAM map:
RAMDISK: 37df4000 - 37ff0000
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ10 used by override.
Kernel command line: root=/dev/ram0 real_root=/dev/sda5 init=/linuxrc resume2=file:/dev/hda5:0xfc038 resume=UUID:7bc7db8d24134cfdac72d1e63a14fd5e:0x42f68 real_resume=UUID:7bc7db8d24134cfdac72d1e63a14fd5e:0x42f68 splash=verbose,theme:natural_gentoo,fbcon=scrollback:512K vga=791 CONSOLE=/dev/tty1 INPUT_EVDEV=y DEVFS_MOUNT=n acpi_sleep=s3_bios,s3_mode nodevfs udev  memory_corruption_check=1 pci=nomsi
  #2 [0037df4000 - 0037ff0000]         RAMDISK
pci 0000:01:00.0: Boot video device
PM: Resume from disk failed.
sd 0:0:0:0: [sda] 156301488 512-byte logical blocks: (80.0 GB/74.5 GiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
 sda: sda1 sda2 < sda5 sda6 sda7 > sda3
sd 0:0:0:0: [sda] Attached SCSI disk
EXT3-fs (sda5): recovery required on readonly filesystem
EXT3-fs (sda5): write access will be enabled during recovery
EXT3-fs (sda5): orphan cleanup on readonly fs
EXT3-fs (sda5): 14 orphan inodes deleted
EXT3-fs (sda5): recovery complete
EXT3-fs (sda5): mounted filesystem with writeback data mode
EXT3-fs (sda5): using internal journal
REISERFS (device sda7): found reiserfs format "3.6" with standard journal
REISERFS warning (device sda7):  reiserfs_fill_super: CONFIG_REISERFS_CHECK is set ON
REISERFS warning (device sda7):  reiserfs_fill_super: - it is slow mode for debugging.
REISERFS (device sda7): using ordered data mode
REISERFS (device sda7): journal params: device sda7, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
REISERFS (device sda7): checking transaction log (sda7)
REISERFS debug (device sda7): journal-1153: found in header: first_unflushed_offset 4940, last_flushed_trans_id 2794869
REISERFS debug (device sda7): journal-1206: Starting replay from offset 4940, trans_id 2794870
REISERFS debug (device sda7): journal-1299: Setting newest_mount_id to 336
REISERFS (device sda7): Using r5 hash to sort names
REISERFS (device sda7): Removing [24768 168033 0x0 SD]..done
REISERFS (device sda7): Removing [24768 166196 0x0 SD]..done
REISERFS (device sda7): There were 2 uncompleted unlinks/truncates. Completed
Adding 979928k swap on /dev/sda6.  Priority:-1 extents:1 across:979928k 

piozone /dev/sda
[PIOZONE, version 1.0 - Copyright (c) 2002 Peter Eriksson <pen@lysator.liu.se>]

Linear read transfer rates:
26.5 MB/s at offset   0 GB using  64 KiB reads
26.0 MB/s at offset  33 GB using  64 KiB reads
18.1 MB/s at offset  67 GB using  64 KiB reads
21.3 MB/s at offset 101 GB using  64 KiB reads
19.1 MB/s at offset 135 GB using  64 KiB reads
19.0 MB/s at offset 169 GB using  64 KiB reads
17.9 MB/s at offset 202 GB using  64 KiB reads
18.8 MB/s at offset 236 GB using  64 KiB reads
19.2 MB/s at offset 270 GB using  64 KiB reads
17.3 MB/s at offset 304 GB using  64 KiB reads
16.8 MB/s at offset 338 GB using  64 KiB reads
16.6 MB/s at offset 372 GB using  64 KiB reads
18.8 MB/s at offset 405 GB using  64 KiB reads
17.2 MB/s at offset 439 GB using  64 KiB reads
16.7 MB/s at offset 473 GB using  64 KiB reads
 4.6 MB/s at offset 507 GB using  64 KiB reads
13.6 MB/s at offset 541 GB using  64 KiB reads
16.2 MB/s at offset 574 GB using  64 KiB reads
14.2 MB/s at offset 608 GB using  64 KiB reads
13.0 MB/s at offset 642 GB using  64 KiB reads
13.7 MB/s at offset 676 GB using  64 KiB reads
11.9 MB/s at offset 710 GB using  64 KiB reads
15.8 MB/s at offset 744 GB using  64 KiB reads
12.9 MB/s at offset 777 GB using  64 KiB reads
13.6 MB/s at offset 811 GB using  64 KiB reads
13.7 MB/s at offset 845 GB using  64 KiB reads
                    
26.2 MB/s at offset   0 GB using 1024 KiB reads
24.3 MB/s at offset  33 GB using 1024 KiB reads
16.3 MB/s at offset  67 GB using 1024 KiB reads
16.9 MB/s at offset 101 GB using 1024 KiB reads
18.8 MB/s at offset 135 GB using 1024 KiB reads
17.9 MB/s at offset 169 GB using 1024 KiB reads
16.6 MB/s at offset 202 GB using 1024 KiB reads
16.5 MB/s at offset 236 GB using 1024 KiB reads
16.8 MB/s at offset 270 GB using 1024 KiB reads
16.8 MB/s at offset 304 GB using 1024 KiB reads
15.9 MB/s at offset 338 GB using 1024 KiB reads
11.6 MB/s at offset 372 GB using 1024 KiB reads
11.9 MB/s at offset 405 GB using 1024 KiB reads
10.9 MB/s at offset 439 GB using 1024 KiB reads
 9.7 MB/s at offset 473 GB using 1024 KiB reads
14.9 MB/s at offset 507 GB using 1024 KiB reads
17.9 MB/s at offset 541 GB using 1024 KiB reads
17.2 MB/s at offset 574 GB using 1024 KiB reads
13.0 MB/s at offset 608 GB using 1024 KiB reads
11.4 MB/s at offset 642 GB using 1024 KiB reads
14.9 MB/s at offset 676 GB using 1024 KiB reads
13.0 MB/s at offset 710 GB using 1024 KiB reads
12.2 MB/s at offset 744 GB using 1024 KiB reads
13.7 MB/s at offset 777 GB using 1024 KiB reads
17.2 MB/s at offset 811 GB using 1024 KiB reads
16.5 MB/s at offset 845 GB using 1024 KiB reads
15.5 MB/s at offset 879 GB using 1024 KiB reads
15.5 MB/s at offset 913 GB using 1024 KiB reads
                    
Random access read transfer rates (area size: 1 GiB):
630.3 MB/s at offset   0 GB using  64 KiB reads
 7.0 MB/s at offset  33 GB using  64 KiB reads
168.4 MB/s at offset  67 GB using  64 KiB reads
                    
 9.9 MB/s at offset   0 GB using 1024 KiB reads
18.2 MB/s at offset  33 GB using 1024 KiB reads
15.8 MB/s at offset  67 GB using 1024 KiB reads

Version 1.03e       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
P30              2G 11740  25 14614   4  8818   2 23785  42 23844   2 162.8   0

less /proc/sys/vm/laptop_mode
0