[Samba] Performance Issues with GBit LAN

Wed Oct 13 17:55:50 GMT 2004

Now I have built the RAID into the other machine with 700 MHz Celeron and
the same GBit card. This Machine has also 384 MB of RAM, so this is upgraded
too.

The output of Bonnie tested on the Raid looks like:

[root at hdd bonnie]# ./Bonnie
File './Bonnie.2324', size: 104857600
Writing with putc()...done
Rewriting...done
Writing intelligently...done
Reading with getc()...done
Reading intelligently...done
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
              -------Sequential Output-------- ---Sequential
Input-- --Random--
              -Per Char- --Block--- -Rewrite-- -Per
Char- --Block--- --Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec
%CPU
          100  5084 99.0 47481 96.9 15686 15.0  5079 94.9 48069 23.0 558.3
5.6
[root at hdd bonnie]#

I think, the CPU-Rates are better as before in the old machine.

Now the test on the (Now Onboard-IDE) 10 GB Seagate Harddisk /dev/hda/:

[root at hdd bonnie]# ./Bonnie
File './Bonnie.2331', size: 104857600
Writing with putc()...done
Rewriting...done
Writing intelligently...done
Reading with getc()...done
Reading intelligently...done
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
              -------Sequential Output-------- ---Sequential
Input-- --Random--
              -Per Char- --Block--- -Rewrite-- -Per
Char- --Block--- --Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec
%CPU
          100  4952 98.8 36262 47.8  9078  9.6  4356 87.7 48891 23.4 338.5
3.4
[root at hdd bonnie]#

Here the CPU-Rates are better, too. So this should have been the first
bottleneck.

The dmesg now looks like:

[root at hdd bonnie]# dmesg
Linux version 2.4.20-8 (bhcompile at porky.devel.redhat.com) (gcc version 3.2.2
20030222 (Red Hat Linux 3.2.2-5)) #1 Thu Mar 13 17:54:28 EST 2003
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
 BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 0000000017feb000 (usable)
 BIOS-e820: 0000000017feb000 - 0000000017fef000 (ACPI data)
 BIOS-e820: 0000000017fef000 - 0000000017fff000 (reserved)
 BIOS-e820: 0000000017fff000 - 0000000018000000 (ACPI NVS)
 BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
0MB HIGHMEM available.
383MB LOWMEM available.
On node 0 totalpages: 98283
zone(0): 4096 pages.
zone(1): 94187 pages.
zone(2): 0 pages.
Kernel command line: auto BOOT_IMAGE=linux ro
BOOT_FILE=/boot/vmlinuz-2.4.20-8 root=LABEL=/
Initializing CPU#0
Detected 701.604 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 1399.19 BogoMIPS
Memory: 381976k/393132k available (1347k kernel code, 8592k reserved, 999k
data, 132k init, 0k highmem)
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 128K
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU:     After generic, caps: 0383f9ff 00000000 00000000 00000000
CPU:             Common caps: 0383f9ff 00000000 00000000 00000000
CPU: Intel Celeron (Coppermine) stepping 06
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
mtrr: v1.40 (20010327) Richard Gooch (rgooch at atnf.csiro.au)
mtrr: detected mtrr type: Intel
PCI: PCI BIOS revision 2.10 entry at 0xf0d90, last bus=2
PCI: Using configuration type 1
PCI: Probing PCI hardware
Transparent bridge - Intel Corp. 82801BA/CA/DB PCI Bridge
PCI: Using IRQ router PIIX [8086/2440] at 00:1f.0
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16)
Starting kswapd
VFS: Disk quotas vdquot_6.5.1
pty: 2048 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS MULTIPORT SHARE_IRQ
SERIAL_PCI ISAPNP enabled
ttyS0 at 0x03f8 (irq = 4) is a 16550A
ttyS1 at 0x02f8 (irq = 3) is a 16550A
Real Time Clock Driver v1.10e
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
NET4: Frame Diverter 0.46
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 7.00beta-2.4
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ICH2: IDE controller at PCI slot 00:1f.1
ICH2: chipset revision 2
ICH2: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xa800-0xa807, BIOS settings: hda:DMA, hdb:pio
    ide1: BM-DMA at 0xa808-0xa80f, BIOS settings: hdc:pio, hdd:pio
hda: ST310211A, ATA DISK drive
blk: queue c03c9f40, I/O limit 4095Mb (mask 0xffffffff)
hdd: CDA66801I, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: host protected area => 1
hda: 19541088 sectors (10005 MB) w/512KiB Cache, CHS=1216/255/63, UDMA(100)
ide-floppy driver 0.99.newide
Partition check:
 hda: hda1 hda2 hda3
ide-floppy driver 0.99.newide
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
Linux IP multicast router 0.06 plus PIM-SM
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
RAMDISK: Compressed image found at block 0
Freeing initrd memory: 230k freed
VFS: Mounted root (ext2 filesystem).
SCSI subsystem driver Revision: 1.00
Journalled Block Device driver loaded
iteraid_init: Found Controller: IT8212 UDMA/ATA133 RAID Controller
IssueIdentify: Checking for IDE. Status (50)
FindDevices: Device 0 is IDE
Channel[0] BM-DMA at 0xB000-0xB007
Channel[1] BM-DMA at 0xB008-0xB00F
scsi0 : RAIDExpress133
  Vendor: ITE       Model: IT8212X           Rev: 1.3
  Type:   Direct-Access                      ANSI SCSI revision: 00
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sda: 781443840 512-byte hdwr sectors (400099 MB)
 sda: sda1 sda2 sda3
divert: allocating divert_blk for eth0
PCI: Enabling device 02:0a.0 (0014 -> 0017)
PCI: Assigned IRQ 5 for device 02:0a.0
divert: allocating divert_blk for eth0
divert: freeing divert_blk for eth0
eth0: Identified chip type is 'RTL8169s/8110s'.
eth0: RTL8169s/8110s Gigabit Ethernet driver 2.2 at 0xd800,
00:40:f4:a8:2d:4c, IRQ 5
eth0: Auto-negotiation Enabled.
eth0: 1000Mbps Full-duplex operation.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
Freeing unused kernel memory: 132k freed
EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,1), internal journal
Adding Swap: 779144k swap-space (priority -1)
kjournald starting.  Commit interval 5 seconds
EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,2), internal journal
EXT3-fs: mounted filesystem with ordered data mode.
parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE]
parport0: irq 7 detected
ip_tables: (C) 2000-2002 Netfilter core team
ip_tables: (C) 2000-2002 Netfilter core team
parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE]
parport0: irq 7 detected
lp0: using parport0 (polling).
lp0: console ready
[root at hdd bonnie]#

The Transfer Speeds are now, after Dimitar's Tunig Tips, at 9-10 MB/sec, but
still not what i expect.

The Solution with the new Kernel isn't tested now. I'm waiting for the
Description how to do that.

Regards,

Steffen Timmermann