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Memory performance on Serverworks GC-LE based system poor?

DISCUSSION Martin Knoblauch 1 participant 1 message Nov 12, 2002

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Martin Knoblauch

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Re: Memory performance on Serverworks GC-LE based system poor?

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Quoted 8 lines · Dave Jones
Quoted 6 lines · Martin Knoblauch

I have experienced extreme low STREAMS numbers (about 600 MB/sec for Triad) on two dual CPU systems based on the ServerWorks GC-LE chipset (SuperMicro P4DLR+ mainboard). Both systems had 2x2.4 GHz XEONs, 4GB of DDR memory and were running kernel 2.4.18. I would usually expect STREAMS numbers of about 2000 MB/sec for this kind of systems.

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Does this ring any bells?

ISTR serverworks LE errata with MTRRs and write-combining. Whether this is biting you or not I can't say.

Write combining would really only bite graphics cards. The only other performance errata I know about affects the CIOB20 earlier revisions (vendor serverworks id 0x0006)

does anybody know what the following ServerWorks device ids are? I
could not find them in the include file:

0012
0000
0101

Maybe their nonrecognition by the kernel is related to my problem?

Martin

marge1$ lspci
00:00.0 Host bridge: ServerWorks: Unknown device 0012 (rev 13) 00:00.1 Host bridge: ServerWorks: Unknown device 0012
00:00.2 Host bridge: ServerWorks: Unknown device 0000
00:02.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27) 00:04.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 0d) 00:05.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 0d) 00:0f.0 ISA bridge: ServerWorks CSB5 South Bridge (rev 93) 00:0f.1 IDE interface: ServerWorks CSB5 IDE Controller (rev 93) 00:0f.2 USB Controller: ServerWorks OSB4/CSB5 USB Controller (rev 05) 00:0f.3 Host bridge: ServerWorks: Unknown device 0225
00:11.0 Host bridge: ServerWorks: Unknown device 0101 (rev 03) 00:11.2 Host bridge: ServerWorks: Unknown device 0101 (rev 03) 02:02.0 SCSI storage controller: Adaptec AIC-7899P U160/m (rev 01) 02:02.1 SCSI storage controller: Adaptec AIC-7899P U160/m (rev 01) marge1$ lspci -v
00:00.0 Host bridge: ServerWorks: Unknown device 0012 (rev 13)
Flags: fast devsel

00:00.1 Host bridge: ServerWorks: Unknown device 0012
Flags: fast devsel

00:00.2 Host bridge: ServerWorks: Unknown device 0000
Flags: fast devsel

00:02.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27) (prog-if 00 [VGA])

        Subsystem: ATI Technologies Inc Rage XL
        Flags: bus master, stepping, medium devsel, latency 64, IRQ 18
        Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
        I/O ports at c800 [size=256]
        Memory at fe7ff000 (32-bit, non-prefetchable) [size=4K]
        Expansion ROM at fe7c0000 [disabled] [size=128K]
        Capabilities: <available only to root>

00:04.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 0d)

        Subsystem: Intel Corp. EtherExpress PRO/100 S Server Adapter
        Flags: bus master, medium devsel, latency 64, IRQ 17
        Memory at fe7fc000 (32-bit, non-prefetchable) [size=4K]
        I/O ports at ce80 [size=64]
        Memory at fe780000 (32-bit, non-prefetchable) [size=128K]
        Expansion ROM at fe770000 [disabled] [size=64K]
        Capabilities: <available only to root>

00:05.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 0d)

        Subsystem: Intel Corp. EtherExpress PRO/100 S Server Adapter
        Flags: bus master, medium devsel, latency 64, IRQ 19
        Memory at fe7fd000 (32-bit, non-prefetchable) [size=4K]
        I/O ports at cf00 [size=64]
        Memory at fe7a0000 (32-bit, non-prefetchable) [size=128K]
        Expansion ROM at fe7e0000 [disabled] [size=64K]
        Capabilities: <available only to root>

00:0f.0 ISA bridge: ServerWorks CSB5 South Bridge (rev 93)
Subsystem: Unknown device d915:5539
Flags: bus master, medium devsel, latency 64

00:0f.1 IDE interface: ServerWorks CSB5 IDE Controller (rev 93) (prog-if 8a [Master SecP PriP])

        Subsystem: ServerWorks CSB5 IDE Controller
        Flags: bus master, medium devsel, latency 64
        I/O ports at 01f0 [size=8]
        I/O ports at 03f4
        I/O ports at 0170 [size=8]
        I/O ports at 0374
        I/O ports at ffa0 [size=16]

00:0f.2 USB Controller: ServerWorks OSB4/CSB5 USB Controller (rev 05) (prog-if 10 [OHCI])
Subsystem: ServerWorks OSB4/CSB5 USB Controller
Flags: bus master, medium devsel, latency 64, IRQ 10
Memory at fe7fe000 (32-bit, non-prefetchable) [size=4K]

00:0f.3 Host bridge: ServerWorks: Unknown device 0225
Subsystem: Unknown device d915:5539
Flags: bus master, medium devsel, latency 0

00:11.0 Host bridge: ServerWorks: Unknown device 0101 (rev 03)
Flags: 66Mhz, medium devsel
Capabilities: <available only to root>

00:11.2 Host bridge: ServerWorks: Unknown device 0101 (rev 03)
Flags: 66Mhz, medium devsel
Capabilities: <available only to root>

02:02.0 SCSI storage controller: Adaptec AIC-7899P U160/m (rev 01)
Subsystem: Unknown device d915:5539
Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 30 BIST result: 00
I/O ports at e400 [disabled] [size=256]
Memory at febfe000 (64-bit, non-prefetchable) [size=4K] Expansion ROM at feba0000 [disabled] [size=128K]
Capabilities: <available only to root>

02:02.1 SCSI storage controller: Adaptec AIC-7899P U160/m (rev 01)
Subsystem: Unknown device d915:5539
Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 31 BIST result: 00
I/O ports at e800 [disabled] [size=256]
Memory at febff000 (64-bit, non-prefetchable) [size=4K] Expansion ROM at febc0000 [disabled] [size=128K]
Capabilities: <available only to root>

marge1$ lspci -vn
00:00.0 Class 0600: 1166:0012 (rev 13)
Flags: fast devsel

00:00.1 Class 0600: 1166:0012
Flags: fast devsel

00:00.2 Class 0600: 1166:0000
Flags: fast devsel

00:02.0 Class 0300: 1002:4752 (rev 27)

        Subsystem: 1002:0008
        Flags: bus master, stepping, medium devsel, latency 64, IRQ 18
        Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
        I/O ports at c800 [size=256]
        Memory at fe7ff000 (32-bit, non-prefetchable) [size=4K]
        Expansion ROM at fe7c0000 [disabled] [size=128K]
        Capabilities: <available only to root>

00:04.0 Class 0200: 8086:1229 (rev 0d)

        Subsystem: 8086:1050
        Flags: bus master, medium devsel, latency 64, IRQ 17
        Memory at fe7fc000 (32-bit, non-prefetchable) [size=4K]
        I/O ports at ce80 [size=64]
        Memory at fe780000 (32-bit, non-prefetchable) [size=128K]
        Expansion ROM at fe770000 [disabled] [size=64K]
        Capabilities: <available only to root>

00:05.0 Class 0200: 8086:1229 (rev 0d)

        Subsystem: 8086:1050
        Flags: bus master, medium devsel, latency 64, IRQ 19
        Memory at fe7fd000 (32-bit, non-prefetchable) [size=4K]
        I/O ports at cf00 [size=64]
        Memory at fe7a0000 (32-bit, non-prefetchable) [size=128K]
        Expansion ROM at fe7e0000 [disabled] [size=64K]
        Capabilities: <available only to root>

00:0f.0 Class 0601: 1166:0201 (rev 93)
Subsystem: d915:5539
Flags: bus master, medium devsel, latency 64

00:0f.1 Class 0101: 1166:0212 (rev 93) (prog-if 8a [Master SecP PriP])

        Subsystem: 1166:0212
        Flags: bus master, medium devsel, latency 64
        I/O ports at 01f0 [size=8]
        I/O ports at 03f4
        I/O ports at 0170 [size=8]
        I/O ports at 0374
        I/O ports at ffa0 [size=16]

00:0f.2 Class 0c03: 1166:0220 (rev 05) (prog-if 10)

        Subsystem: 1166:0220
        Flags: bus master, medium devsel, latency 64, IRQ 10
        Memory at fe7fe000 (32-bit, non-prefetchable) [size=4K]

00:0f.3 Class 0600: 1166:0225
Subsystem: d915:5539
Flags: bus master, medium devsel, latency 0

00:11.0 Class 0600: 1166:0101 (rev 03)
Flags: 66Mhz, medium devsel
Capabilities: <available only to root>

00:11.2 Class 0600: 1166:0101 (rev 03)
Flags: 66Mhz, medium devsel
Capabilities: <available only to root>

02:02.0 Class 0100: 9005:00cf (rev 01)
Subsystem: d915:5539
Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 30 BIST result: 00
I/O ports at e400 [disabled] [size=256]
Memory at febfe000 (64-bit, non-prefetchable) [size=4K] Expansion ROM at feba0000 [disabled] [size=128K]
Capabilities: <available only to root>

02:02.1 Class 0100: 9005:00cf (rev 01)
Subsystem: d915:5539
Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 31 BIST result: 00
I/O ports at e800 [disabled] [size=256]
Memory at febff000 (64-bit, non-prefetchable) [size=4K] Expansion ROM at febc0000 [disabled] [size=128K]
Capabilities: <available only to root>

marge1$ lspci -n
00:00.0 Class 0600: 1166:0012 (rev 13)
00:00.1 Class 0600: 1166:0012
00:00.2 Class 0600: 1166:0000
00:02.0 Class 0300: 1002:4752 (rev 27)
00:04.0 Class 0200: 8086:1229 (rev 0d)
00:05.0 Class 0200: 8086:1229 (rev 0d)
00:0f.0 Class 0601: 1166:0201 (rev 93)
00:0f.1 Class 0101: 1166:0212 (rev 93)
00:0f.2 Class 0c03: 1166:0220 (rev 05)
00:0f.3 Class 0600: 1166:0225
00:11.0 Class 0600: 1166:0101 (rev 03)
00:11.2 Class 0600: 1166:0101 (rev 03)
02:02.0 Class 0100: 9005:00cf (rev 01)
02:02.1 Class 0100: 9005:00cf (rev 01)