मैं पूरी तरह से उपयोग किए गए सभी उपलब्ध pci-e स्लॉट के साथ भारी पीसीआई-ई-ओवरलोड सिस्टम का उपयोग कर रहा हूं। मेरे i7-2600K के इंटेल विनिर्देश केवल 16 पीएसआई-ई लेन के लिए समर्थन की घोषणा करते हैं, फिर भी बहुत सारे एक्सटेंशन कार्ड का उपयोग करने के बावजूद, अभी भी मेरे 2 जीपीयू एक्स 8 की गति से चलते हैं। मैंने सोचा कि अन्य कार्डों के कारण यह x4 या उससे कम की तरह होगा।
तो सिस्टम 16 से अधिक pci-e लेन का समर्थन कैसे करता है, CPU केवल 16 के लिए समर्थन का दावा करने के बावजूद? यह मेरा lspci -vv
परिणाम है:
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) (prog-if 00 [Normal decode])
LnkCap: Port #2, Speed 5GT/s, Width x8, ASPM not supported, Exit Latency L0s <256ns, L1 <4us
LnkSta: Speed 2.5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt+ ABWMgmt-
00:01.1 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) (prog-if 00 [Normal decode])
LnkCap: Port #3, Speed 5GT/s, Width x8, ASPM not supported, Exit Latency L0s <256ns, L1 <4us
LnkSta: Speed 2.5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt+ ABWMgmt-
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579V Gigabit Network Connection (rev 05)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05) (prog-if 20 [EHCI])
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5) (prog-if 00 [Normal decode])
LnkCap: Port #1, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <4us
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5) (prog-if 00 [Normal decode])
LnkCap: Port #2, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <4us
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b5) (prog-if 00 [Normal decode])
LnkCap: Port #3, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <4us
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5) (prog-if 00 [Normal decode])
LnkCap: Port #4, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <4us
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b5) (prog-if 00 [Normal decode])
LnkCap: Port #5, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <4us
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
00:1c.6 PCI bridge: Intel Corporation 82801 PCI Bridge (rev b5) (prog-if 01 [Subtractive decode])
LnkCap: Port #7, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <1us, L1 <4us
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt- ABWMgmt-
00:1c.7 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 8 (rev b5) (prog-if 00 [Normal decode])
LnkCap: Port #8, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <4us
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05) (prog-if 20 [EHCI])
00:1f.0 ISA bridge: Intel Corporation P67 Express Chipset Family LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family SATA AHCI Controller (rev 05) (prog-if 01 [AHCI 1.0])
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation GF110 [GeForce GTX 580] (rev a1) (prog-if 00 [VGA controller])
LnkCap: Port #0, Speed 2.5GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <256ns, L1 <4us
LnkSta: Speed 2.5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
01:00.1 Audio device: NVIDIA Corporation GF110 High Definition Audio Controller (rev a1)
LnkCap: Port #0, Speed 2.5GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <256ns, L1 <4us
LnkSta: Speed 2.5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
02:00.0 VGA compatible controller: NVIDIA Corporation GF100GL [Quadro 4000] (rev a1) (prog-if 00 [VGA controller])
LnkCap: Port #1, Speed 2.5GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <256ns, L1 <4us
LnkSta: Speed 2.5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
02:00.1 Audio device: NVIDIA Corporation GF110 High Definition Audio Controller (rev a1)
LnkCap: Port #1, Speed 2.5GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <256ns, L1 <4us
LnkSta: Speed 2.5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
03:00.0 SATA controller: Marvell Technology Group Ltd. 88SE9123 PCIe SATA 6.0 Gb/s controller (rev 11) (prog-if 01 [AHCI 1.0])
LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <64us
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
03:00.1 IDE interface: Marvell Technology Group Ltd. 88SE912x IDE Controller (rev 11) (prog-if 8f [Master SecP SecO PriP PriO])
LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <64us
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
04:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) (prog-if 30 [XHCI])
LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 unlimited
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
05:00.0 SATA controller: Marvell Technology Group Ltd. 88SE9123 PCIe SATA 6.0 Gb/s controller (rev 11) (prog-if 01 [AHCI 1.0])
LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <64us
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
05:00.1 IDE interface: Marvell Technology Group Ltd. 88SE912x IDE Controller (rev 11) (prog-if 8f [Master SecP SecO PriP PriO])
LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <64us
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
06:00.0 SATA controller: JMicron Technology Corp. JMB362 SATA Controller (rev 10) (prog-if 01 [AHCI 1.0])
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <1us, L1 <16us
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
07:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) (prog-if 30 [XHCI])
LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 unlimited
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
08:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 01) (prog-if 01 [Subtractive decode])
09:00.0 Multimedia audio controller: C-Media Electronics Inc CMI8788 [Oxygen HD Audio]
09:01.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller (rev c0) (prog-if 10 [OHCI])
0a:00.0 SATA controller: Marvell Technology Group Ltd. 88SE9172 SATA 6Gb/s Controller (rev 11) (prog-if 01 [AHCI 1.0])
LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <64us
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
मैं देखता हूं कि कुछ पोर्ट ऐसे हैं जो खुद CPU के हैं और कुछ X1 स्लॉट्स जो चिपसेट द्वारा समर्थित हैं। चिपसेट-समर्थित पीसी-ई लेन और सीपीयू-समर्थित के बीच अंतर क्या है?
यहाँ है lspci -t
:
-[0000:00]-+-00.0
+-01.0-[01]--+-00.0
| \-00.1
+-01.1-[02]--+-00.0
| \-00.1
+-16.0
+-19.0
+-1a.0
+-1b.0
+-1c.0-[03]--+-00.0
| \-00.1
+-1c.1-[04]----00.0
+-1c.2-[05]--+-00.0
| \-00.1
+-1c.3-[06]----00.0
+-1c.4-[07]----00.0
+-1c.6-[08-09]----00.0-[09]--+-00.0
| \-01.0
+-1c.7-[0a]----00.0
+-1d.0
+-1f.0
+-1f.2
\-1f.3
मैंने देखा कि थ्रेड्रीप्टर सीपीयू में 64 पीएसआई-ई लेन का समर्थन है, लेकिन मदरबोर्ड मदरबोर्ड पर पीएसआई-ई स्लॉट के माध्यम से केवल 48 को उजागर करते हैं। क्या इसका मतलब यह है कि X399 इस तरह के दृष्टिकोण का उपयोग नहीं करता है और यहाँ उन सभी "अतिरिक्त" pci-e लेन जैसे M.2 आदि को भी सीधे सीपीयू द्वारा समर्थित किया जाता है?
lspci -t
पेड़ की संरचना को देखने की कोशिश करें । मुझे दो PCI पुल दिखाई देते हैं, एक 2x चौड़ाई 8 बंदरगाहों के साथ, और एक 8x चौड़ाई 1 बंदरगाहों के साथ। तो यह कुल 24 PCIe लेन होगा ... यकीन है कि वे कैसे नहीं करने के लिए 16 PCIe लेन अपने चिपसेट है माना जाता है।
-t
PCH pci-e लेन और सीपीयू वालों के बीच कार्यात्मक अंतर क्या है? क्या उनके पास मेमोरी एक्सेस के मंदिरों में अलग-अलग विशेषताएं हैं या ऐसा कुछ है? अलग प्रदर्शन?