Auteur Sujet: Carte réseau 1 Gb/s limitée à 500 Mb/s  (Lu 16860 fois)

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vivien

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« Réponse #24 le: 28 novembre 2013 à 19:00:47 »
Il te faut 2 PC connectés en Ethernet 1 Gb/s.

PC 1 : iperf -s -i 2
PC 2 : iperf -c 192.168.1.10 -i 2 -r -t 20

192.168.1.10 est l'IP du PC 1, à changer par la vraie IP.

olive91

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« Réponse #25 le: 28 novembre 2013 à 19:30:17 »
ah ok merci vivien

j'ai un seul pc  :( :(

vivien

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« Réponse #26 le: 28 décembre 2013 à 21:12:41 »
Voici une machine Dell Desktop AMD Athlon64 3200+ avec PCI Express.

Si je comprends bien, la carte Ethernet intégré est sur le bus PCI (32bits) :

04:07.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)
   Subsystem: Dell Device 01f4
   Flags: bus master, fast devsel, latency 64, IRQ 19
   Memory at fdbfe000 (32-bit, non-prefetchable) [size=8K]
   Capabilities: [40] Power Management version 2
   Kernel driver in use: b44


Voici le LSPCI complet :
# lspci -tv
-[0000:00]-+-00.0  NVIDIA Corporation C51 Host Bridge
           +-00.1  NVIDIA Corporation C51 Memory Controller 0
           +-00.2  NVIDIA Corporation C51 Memory Controller 1
           +-00.3  NVIDIA Corporation C51 Memory Controller 5
           +-00.4  NVIDIA Corporation C51 Memory Controller 4
           +-00.5  NVIDIA Corporation C51 Host Bridge
           +-00.6  NVIDIA Corporation C51 Memory Controller 3
           +-00.7  NVIDIA Corporation C51 Memory Controller 2
           +-02.0-[01]--
           +-03.0-[02]--
           +-04.0-[03]--
           +-05.0  NVIDIA Corporation C51 [GeForce 6150 LE]
           +-09.0  NVIDIA Corporation MCP51 Host Bridge
           +-0a.0  NVIDIA Corporation MCP51 LPC Bridge
           +-0a.1  NVIDIA Corporation MCP51 SMBus
           +-0a.2  NVIDIA Corporation MCP51 Memory Controller 0
           +-0b.0  NVIDIA Corporation MCP51 USB Controller
           +-0b.1  NVIDIA Corporation MCP51 USB Controller
           +-0e.0  NVIDIA Corporation MCP51 Serial ATA Controller
           +-0f.0  NVIDIA Corporation MCP51 Serial ATA Controller
           +-10.0-[04]----07.0  Broadcom Corporation BCM4401-B0 100Base-TX
           +-10.1  NVIDIA Corporation MCP51 High Definition Audio
           +-18.0  Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
           +-18.1  Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
           +-18.2  Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
           \-18.3  Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
root@Mamie-Ubuntu:~# lspci -v
00:00.0 RAM memory: NVIDIA Corporation C51 Host Bridge (rev a2)
Subsystem: NVIDIA Corporation C51 Host Bridge
Flags: bus master, 66MHz, fast devsel, latency 0
Capabilities: [44] HyperTransport: Slave or Primary Interface
Capabilities: [e0] HyperTransport: MSI Mapping Enable+ Fixed-

00:00.1 RAM memory: NVIDIA Corporation C51 Memory Controller 0 (rev a2)
Subsystem: NVIDIA Corporation C51 Memory Controller 0
Flags: 66MHz, fast devsel

00:00.2 RAM memory: NVIDIA Corporation C51 Memory Controller 1 (rev a2)
Subsystem: NVIDIA Corporation C51 Memory Controller 1
Flags: 66MHz, fast devsel

00:00.3 RAM memory: NVIDIA Corporation C51 Memory Controller 5 (rev a2)
Subsystem: NVIDIA Corporation C51 Memory Controller 5
Flags: 66MHz, fast devsel

00:00.4 RAM memory: NVIDIA Corporation C51 Memory Controller 4 (rev a2)
Subsystem: NVIDIA Corporation C51 Memory Controller 4
Flags: bus master, 66MHz, fast devsel, latency 0

00:00.5 RAM memory: NVIDIA Corporation C51 Host Bridge (rev a2)
Subsystem: NVIDIA Corporation C51 Host Bridge
Flags: bus master, 66MHz, fast devsel, latency 0
Capabilities: [44] #00 [00fe]
Capabilities: [fc] #00 [0000]

00:00.6 RAM memory: NVIDIA Corporation C51 Memory Controller 3 (rev a2)
Subsystem: NVIDIA Corporation C51 Memory Controller 3
Flags: 66MHz, fast devsel

00:00.7 RAM memory: NVIDIA Corporation C51 Memory Controller 2 (rev a2)
Subsystem: NVIDIA Corporation C51 Memory Controller 2
Flags: 66MHz, fast devsel

00:02.0 PCI bridge: NVIDIA Corporation C51 PCI Express Bridge (rev a1) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000a000-0000afff
Memory behind bridge: fd800000-fd8fffff
Prefetchable memory behind bridge: 00000000fd700000-00000000fd7fffff
Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000
Capabilities: [48] Power Management version 2
Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+
Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed-
Capabilities: [80] Express Root Port (Slot+), MSI 00
Capabilities: [100] Virtual Channel
Kernel driver in use: pcieport

00:03.0 PCI bridge: NVIDIA Corporation C51 PCI Express Bridge (rev a1) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 00008000-00008fff
Memory behind bridge: fde00000-fdefffff
Prefetchable memory behind bridge: 00000000fdd00000-00000000fddfffff
Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000
Capabilities: [48] Power Management version 2
Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+
Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed-
Capabilities: [80] Express Root Port (Slot+), MSI 00
Capabilities: [100] Virtual Channel
Kernel driver in use: pcieport

00:04.0 PCI bridge: NVIDIA Corporation C51 PCI Express Bridge (rev a1) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
I/O behind bridge: 0000b000-0000bfff
Memory behind bridge: fdc00000-fdcfffff
Prefetchable memory behind bridge: 00000000fd900000-00000000fd9fffff
Capabilities: [40] Subsystem: NVIDIA Corporation Device 0000
Capabilities: [48] Power Management version 2
Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+
Capabilities: [60] HyperTransport: MSI Mapping Enable- Fixed-
Capabilities: [80] Express Root Port (Slot+), MSI 00
Capabilities: [100] Virtual Channel
Kernel driver in use: pcieport

00:05.0 VGA compatible controller: NVIDIA Corporation C51 [GeForce 6150 LE] (rev a2) (prog-if 00 [VGA controller])
Subsystem: Dell Device 01f4
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 16
Memory at fc000000 (32-bit, non-prefetchable) [size=16M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
Memory at fb000000 (64-bit, non-prefetchable) [size=16M]
[virtual] Expansion ROM at 80000000 [disabled] [size=128K]
Capabilities: [48] Power Management version 2
Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
Kernel driver in use: nouveau

00:09.0 RAM memory: NVIDIA Corporation MCP51 Host Bridge (rev a2)
Subsystem: NVIDIA Corporation Device cb84
Flags: bus master, 66MHz, fast devsel, latency 0
Capabilities: [44] HyperTransport: Slave or Primary Interface
Capabilities: [e0] HyperTransport: MSI Mapping Enable- Fixed-

00:0a.0 ISA bridge: NVIDIA Corporation MCP51 LPC Bridge (rev a3)
Subsystem: Dell Device 01f4
Flags: bus master, 66MHz, fast devsel, latency 0

00:0a.1 SMBus: NVIDIA Corporation MCP51 SMBus (rev a3)
Subsystem: Dell Device 01f4
Flags: 66MHz, fast devsel, IRQ 11
I/O ports at 1c00 [size=64]
I/O ports at 1c40 [size=64]
Capabilities: [44] Power Management version 2
Kernel driver in use: nForce2_smbus

00:0a.2 RAM memory: NVIDIA Corporation MCP51 Memory Controller 0 (rev a3)
Subsystem: Dell Device 01f4
Flags: 66MHz, fast devsel

00:0b.0 USB controller: NVIDIA Corporation MCP51 USB Controller (rev a3) (prog-if 10 [OHCI])
Subsystem: Dell Device 01f4
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 23
Memory at fe02f000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Kernel driver in use: ohci_hcd

00:0b.1 USB controller: NVIDIA Corporation MCP51 USB Controller (rev a3) (prog-if 20 [EHCI])
Subsystem: Dell Device 01f4
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22
Memory at fe02e000 (32-bit, non-prefetchable) [size=256]
Capabilities: [44] Debug port: BAR=1 offset=0098
Capabilities: [80] Power Management version 2
Kernel driver in use: ehci-pci

00:0e.0 IDE interface: NVIDIA Corporation MCP51 Serial ATA Controller (rev a1) (prog-if 85 [Master SecO PriO])
Subsystem: Dell Device 01f4
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 21
I/O ports at 09f0 [size=8]
I/O ports at 0bf0 [size=4]
I/O ports at 0970 [size=8]
I/O ports at 0b70 [size=4]
I/O ports at e000 [size=16]
Memory at fe02d000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Capabilities: [b0] MSI: Enable- Count=1/4 Maskable- 64bit+
Capabilities: [cc] HyperTransport: MSI Mapping Enable+ Fixed+
Kernel driver in use: sata_nv

00:0f.0 IDE interface: NVIDIA Corporation MCP51 Serial ATA Controller (rev a1) (prog-if 85 [Master SecO PriO])
Subsystem: Dell Device 01f4
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 20
I/O ports at 09e0 [size=8]
I/O ports at 0be0 [size=4]
I/O ports at 0960 [size=8]
I/O ports at 0b60 [size=4]
I/O ports at cc00 [size=16]
Memory at fe02c000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Capabilities: [b0] MSI: Enable- Count=1/4 Maskable- 64bit+
Capabilities: [cc] HyperTransport: MSI Mapping Enable+ Fixed+
Kernel driver in use: sata_nv

00:10.0 PCI bridge: NVIDIA Corporation MCP51 PCI Bridge (rev a2) (prog-if 01 [Subtractive decode])
Flags: bus master, 66MHz, fast devsel, latency 0
Bus: primary=00, secondary=04, subordinate=04, sec-latency=32
I/O behind bridge: 00009000-00009fff
Memory behind bridge: fdb00000-fdbfffff
Prefetchable memory behind bridge: fda00000-fdafffff
Capabilities: [b8] Subsystem: Device 0000:0000
Capabilities: [8c] HyperTransport: MSI Mapping Enable+ Fixed-

00:10.1 Audio device: NVIDIA Corporation MCP51 High Definition Audio (rev a2)
Subsystem: Dell Device 01f4
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 23
Memory at fe024000 (32-bit, non-prefetchable) [size=16K]
Capabilities: [44] Power Management version 2
Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
Capabilities: [6c] HyperTransport: MSI Mapping Enable+ Fixed+
Kernel driver in use: snd_hda_intel

00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
Flags: fast devsel
Capabilities: [80] HyperTransport: Host or Secondary Interface

00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
Flags: fast devsel

00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
Flags: fast devsel

00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
Flags: fast devsel
Capabilities: [f0] Secure device <?>
Kernel driver in use: k8temp

04:07.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)
Subsystem: Dell Device 01f4
Flags: bus master, fast devsel, latency 64, IRQ 19
Memory at fdbfe000 (32-bit, non-prefetchable) [size=8K]
Capabilities: [40] Power Management version 2
Kernel driver in use: b44

mirtouf

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Carte réseau 1 Gb/s limitée à 500 Mb/s
« Réponse #27 le: 28 décembre 2013 à 23:16:11 »
La connexion entre le couple GF 6150LE / Nforce 430 se fait via le bus Hypertransport (plus rapide que le PCI mais même brochage).

vivien

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« Réponse #28 le: 29 décembre 2013 à 14:28:41 »
Je pensais que HyperTransport étais pour la RAM uniquement.

Si la carte graphique intégré à la carte mère est connectée via HyperTransport, la carte Ethernet en PCI, le bus PCI express est vide...

00:05.0 VGA compatible controller: NVIDIA Corporation C51 [GeForce 6150 LE] (rev a2) (prog-if 00 [VGA controller])
   Subsystem: Dell Device 01f4
   Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 16
   Memory at fc000000 (32-bit, non-prefetchable) [size=16M]
   Memory at e0000000 (64-bit, prefetchable) [size=256M]
   Memory at fb000000 (64-bit, non-prefetchable) [size=16M]
   [virtual] Expansion ROM at 80000000 [disabled] [size=128K]
   Capabilities: [48] Power Management version 2
   Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
   Kernel driver in use: nouveau


Au niveau débit :
- ISA 8 bits : bus de largeur 8 bits, avec une fréquence d'horloge de 4.77 MHz à 8 MHz selon le processeur => débit maximal de 8 Mo/s à 8 Mhz
- ISA 16 bits : bus de largeur 16 bits, avec une fréquence d'horloge de 4.77 MHz à 8 MHz selon le processeur => débit maximal de 16 Mo/s à 8 Mhz
- VESA Local Bus : bus 32 bits, cadencé à une vitesse d’horloge de 25 à 40 MHz selon le processeur => débit maximal de 160 Mo/s à 40 Mhz
- PCI : bus 32 bits à 33 MHz => débit maximal de 133 Mo/s
- PCI 64bits : bus 64 bits à 66 MHz => débit maximal de 528 Mo/s
- PCI-X : bus 64 bits à 133 MHz => débit maximal de 1066 Mo/s
- PCI-X 2.0 : bus 64 bits à 266 MHz => débit maximal de 2133 Mo/s
- AGP 1 X : bus 32-bit à 66 MHz => débit maximal de 266 Mo/s
- AGP 2 X : bus 32-bit à 66 MHz DDR => débit maximal de 533 Mo/s
- AGP 4 X : bus 32-bit à 66 MHz QDR => débit maximal de 1066 Mo/s
- AGP 8 X : bus 32-bit à 66 MHz à fréquence octuple => débit maximal de 2 133 Mo/s
- PCIe 1.0 ×1 : bus 1 bit à 2,5 Ghz => débit maximal de 250 Mo/s in + 250 Mo/s out (full duplex)
- PCIe 1.0 ×2 : bus 2 bits à 2,5 Ghz => débit maximal de 500 Mo/s in + 500 Mo/s out (full duplex)
- PCIe 1.0 ×4 : bus 4 bits à 2,5 Ghz => débit maximal de 1 Go/s in + 1 Go/s out (full duplex)
- PCIe 1.0 ×8 : bus 8 bits à 2,5 Ghz => débit maximal de 2 Go/s in + 2 Go/s out (full duplex)
- PCIe 1.0 ×16 : bus 16 bits => débit maximal de 4 Go/s in + 4 Go/s out (full duplex)
- PCIe 1.0 ×32 : bus 32 bits => débit maximal de 8 Go/s in + 8 Go/s out (full duplex)
- PCIe 2.0 ×1 : bus 1 bit à 5 Ghz => débit maximal de 500 Mo/s in + 500 Mo/s out (full duplex)
- PCIe 2.0 ×2 : bus 2 bits à 5 Ghz => débit maximal de 1 Go/s in + 1 Go/s out (full duplex)
- PCIe 2.0 ×4 : bus 4 bits à 5 Ghz => débit maximal de 2 Go/s in + 2 Go/s out (full duplex)
- PCIe 2.0 ×8 : bus 8 bits à 5 Ghz => débit maximal de 4 Go/s in + 4 Go/s out (full duplex)
- PCIe 2.0 ×16 : bus 16 bits à 5 Ghz => débit maximal de 8 Go/s in + 8 Go/s out (full duplex)
- PCIe 2.0 ×32 : bus 32 bits à 5 Ghz => débit maximal de 16 Go/s in + 16 Go/s out (full duplex)
- PCIe 3.0 ×1 : bus 1 bit à 8 Ghz => débit maximal de 1 Go/s in + 1 Go/s out (full duplex)
- PCIe 3.0 ×2 : bus 2 bits à 8 Ghz => débit maximal de 2 Go/s in + 2 Go/s out (full duplex)
- PCIe 3.0 ×4 : bus 4 bits à 8 Ghz => débit maximal de 4 Go/s in + 4 Go/s out (full duplex)
- PCIe 3.0 ×8 : bus 8 bits à 8 Ghz => débit maximal de 8 Go/s in + 8 Go/s out (full duplex)
- PCIe 3.0 ×16 : bus 16 bits à 8 Ghz => débit maximal de 16 Go/s in + 16 Go/s out (full duplex)
- PCIe 3.0 ×32 : bus 32 bits à 8 Ghz => débit maximal de 32 Go/s in + 32 Go/s out (full duplex)
- L'HyperTransport 1.x : bus jusqu'à 800 Mhz offre une bande passante théorique de 12,8 Go/s.
- L'HyperTransport 2.0 : bus jusqu'à 1,6 Ghz offre une bande passante théorique de 22,4 Go/s.
- L'HyperTransport 3.0 : bus jusqu'à 2,6 Ghz  offre une bande passante théorique de 41,6 Go/s.
- L'HyperTransport 3.1 : bus jusqu'à 3,2 Ghz  offre une bande passante théorique de 51,2 Go/s.