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Difference between revisions of "cavium/microarchitectures/cnmips"
< cavium

(→‎Memory Hierarchy)
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Note that the [[L2$]] is shared across all the cores over a coherent bus operating at the core's native clock frequency of 600 MHz for a theoretical bandwidth of 230 Gb/s. There is a 12-cycle latency between the L1 and L2 caches. The L2 is connected directly to an on-chip [[SDRAM]] controller with support for up to 16 GiB of single-channel 64-bit (and 128-bit for 8- and 16-core models) [[DDR1]]/[[DDR2]] up to 400 MHz for 5.96 GiB/s (6.4 GB/s) and 11.92 GiB/s (12.8 GB/s) for the 8- and 16- cores.
 
Note that the [[L2$]] is shared across all the cores over a coherent bus operating at the core's native clock frequency of 600 MHz for a theoretical bandwidth of 230 Gb/s. There is a 12-cycle latency between the L1 and L2 caches. The L2 is connected directly to an on-chip [[SDRAM]] controller with support for up to 16 GiB of single-channel 64-bit (and 128-bit for 8- and 16-core models) [[DDR1]]/[[DDR2]] up to 400 MHz for 5.96 GiB/s (6.4 GB/s) and 11.92 GiB/s (12.8 GB/s) for the 8- and 16- cores.
 +
 +
== All cnMIPS Chips ==
 +
<!-- NOTE:
 +
          This table is generated automatically from the data in the actual articles.
 +
          If a microprocessor is missing from the list, an appropriate article for it needs to be
 +
          created and tagged accordingly.
 +
 +
          Missing a chip? please dump its name here: http://en.wikichip.org/wiki/WikiChip:wanted_chips
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<table class="wikitable sortable">
 +
<tr><th colspan="10" style="background:#D6D6FF;">All cnMIPS Microprocessors</th></tr>
 +
<tr><th>Model</th><th>Family</th><th>Price</th><th>Launched</th><th>Cores</th><th>L2$</th><th>Power</th><th>Freq</th><th>Mem Type</th><th>Max Mem</th></tr>
 +
{{#ask: [[Category:microprocessor models by cavium]][[microarchitecture::cnMIPS]]
 +
|?full page name
 +
|?model number
 +
|?microprocessor family
 +
|?release price
 +
|?first launched
 +
|?core count
 +
|?l2$ size#KiB
 +
|?power dissipation
 +
|?base frequency
 +
|?supported memory type
 +
|?max memory
 +
|format=template
 +
|template=proc table 2
 +
|userparam=11
 +
|mainlabel=-
 +
}}
 +
{{table count|col=10|ask=[[Category:microprocessor models by cavium]][[microarchitecture::cnMIPS]]}}
 +
</table>

Revision as of 15:39, 8 December 2016

Edit Values
cnMIPS µarch
General Info
ERROR: "atype" is missing!

cnMIPS or cnMIPS64 is the first microarchitecture implementing the MIPS64 ISA designed by Cavium for their Octeon family of processors. The "cn" stands for "Cavium Networks" or "content networking". This microarchitecture was designed with network-related applications (L3 through L7) in mind which resulted in a large selection of hardware accelerators (compression/security) being included.

History

The cnMIPS was Cavium's first microarchitecture developed completely in-house from the ground up. The cnMIPS is also the first implementation of the MIPS64 Release 2 ISA. The design was done by a group of 35 engineers who previously worked on DEC's EV7 based in Marlboro, Massachusetts under the lead of Cavium's CTO Richard Kessler (who was previously the chief architect of the EV7). The fully custom final design proved to be around three to five times faster than the synthesized MIPS64 core.

Codenames

Family Description
Octeon Enterprise network services processor (NSP)

Process Technology

Chips were fabricated by TSMC on their 0.13-micron CMOS process.

Architecture

cnMIPS is the first implementation of the MIPS64 Release 2 ISA. Cavium's design goals were a target clock speed of around 600 MHz. Being primarily designed for network applications, the FPU was omitted as complex floating point operations are uncommon.

cnMIPS includes a number of additional functional units:

  • SPI-4.2 interface
  • Gigabit Ethernet MAC
  • PLL
  • 64-bit 133 MHz PCI-X host/slave controller

There is no HyperTransport interface implemented. Also note the cnMIPS was planned to have a PCI Express interface but was eventually left out due to delays. Cavium did offer a number of bridge chips as a stopgap solution when desired.

Special Functional Units

Designed for network-heavy operations, cnMIPS implements an array of security and compression units.

Memory Hierarchy

  • Cache
    • L1I Cache:
      • 16-32 KiB 64-way set associative
      • per core
    • L1D Cache:
      • 8 KiB 8-way set associative
      • Write-through policy
      • per core
    • L2 Cache:
      • Up to 1 MiB 8-way set associative
      • 128 B line locking and partitioning
      • shared by all cores
  • TLB
    • 32-entry
  • MMU
    • 2 KiB write buffer

Note that the L2$ is shared across all the cores over a coherent bus operating at the core's native clock frequency of 600 MHz for a theoretical bandwidth of 230 Gb/s. There is a 12-cycle latency between the L1 and L2 caches. The L2 is connected directly to an on-chip SDRAM controller with support for up to 16 GiB of single-channel 64-bit (and 128-bit for 8- and 16-core models) DDR1/DDR2 up to 400 MHz for 5.96 GiB/s (6.4 GB/s) and 11.92 GiB/s (12.8 GB/s) for the 8- and 16- cores.

All cnMIPS Chips

... further results
All cnMIPS Microprocessors
ModelFamilyPriceLaunchedCoresL2$PowerFreqMem TypeMax Mem
CN3005-300 CPOCTEON$ 19.00
€ 17.10
£ 15.39
¥ 1,963.27
1 May 2006164 KiB
0.0625 MiB
65,536 B
6.103516e-5 GiB
2 W
2,000 mW
0.00268 hp
0.002 kW
300 MHz
0.3 GHz
300,000 kHz
DDR2-5332,048 MiB
2,097,152 KiB
2,147,483,648 B
2 GiB
0.00195 TiB
CN3005-300 SCPOCTEON$ 19.00
€ 17.10
£ 15.39
¥ 1,963.27
1 May 2006164 KiB
0.0625 MiB
65,536 B
6.103516e-5 GiB
2 W
2,000 mW
0.00268 hp
0.002 kW
300 MHz
0.3 GHz
300,000 kHz
DDR2-5332,048 MiB
2,097,152 KiB
2,147,483,648 B
2 GiB
0.00195 TiB
CN3005-400 CPOCTEON1 May 2006164 KiB
0.0625 MiB
65,536 B
6.103516e-5 GiB
3 W
3,000 mW
0.00402 hp
0.003 kW
400 MHz
0.4 GHz
400,000 kHz
DDR2-5332,048 MiB
2,097,152 KiB
2,147,483,648 B
2 GiB
0.00195 TiB
CN3005-400 SCPOCTEON1 May 2006164 KiB
0.0625 MiB
65,536 B
6.103516e-5 GiB
3 W
3,000 mW
0.00402 hp
0.003 kW
400 MHz
0.4 GHz
400,000 kHz
DDR2-5332,048 MiB
2,097,152 KiB
2,147,483,648 B
2 GiB
0.00195 TiB
CN3005-500 CPOCTEON1 May 2006164 KiB
0.0625 MiB
65,536 B
6.103516e-5 GiB
4 W
4,000 mW
0.00536 hp
0.004 kW
500 MHz
0.5 GHz
500,000 kHz
DDR2-5332,048 MiB
2,097,152 KiB
2,147,483,648 B
2 GiB
0.00195 TiB
CN3005-500 SCPOCTEON1 May 2006164 KiB
0.0625 MiB
65,536 B
6.103516e-5 GiB
4 W
4,000 mW
0.00536 hp
0.004 kW
500 MHz
0.5 GHz
500,000 kHz
DDR2-5332,048 MiB
2,097,152 KiB
2,147,483,648 B
2 GiB
0.00195 TiB
CN3010-300 CPOCTEON$ 39.00
€ 35.10
£ 31.59
¥ 4,029.87
1 May 20061128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
2 W
2,000 mW
0.00268 hp
0.002 kW
300 MHz
0.3 GHz
300,000 kHz
DDR2-5332,048 MiB
2,097,152 KiB
2,147,483,648 B
2 GiB
0.00195 TiB
CN3010-300 SCPOCTEON$ 39.00
€ 35.10
£ 31.59
¥ 4,029.87
1 May 20061128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
2 W
2,000 mW
0.00268 hp
0.002 kW
300 MHz
0.3 GHz
300,000 kHz
DDR2-5332,048 MiB
2,097,152 KiB
2,147,483,648 B
2 GiB
0.00195 TiB
CN3010-400 CPOCTEON1 May 20061128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
3 W
3,000 mW
0.00402 hp
0.003 kW
400 MHz
0.4 GHz
400,000 kHz
DDR2-5332,048 MiB
2,097,152 KiB
2,147,483,648 B
2 GiB
0.00195 TiB
CN3010-400 SCPOCTEON1 May 20061128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
3 W
3,000 mW
0.00402 hp
0.003 kW
400 MHz
0.4 GHz
400,000 kHz
DDR2-5332,048 MiB
2,097,152 KiB
2,147,483,648 B
2 GiB
0.00195 TiB
CN3010-500 CPOCTEON1 May 20061128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
4 W
4,000 mW
0.00536 hp
0.004 kW
500 MHz
0.5 GHz
500,000 kHz
DDR2-5332,048 MiB
2,097,152 KiB
2,147,483,648 B
2 GiB
0.00195 TiB
CN3010-500 SCPOCTEON1 May 20061128 KiB
0.125 MiB
131,072 B
1.220703e-4 GiB
4 W
4,000 mW
0.00536 hp
0.004 kW
500 MHz
0.5 GHz
500,000 kHz
DDR2-5332,048 MiB
2,097,152 KiB
2,147,483,648 B
2 GiB
0.00195 TiB
CN3110-300 CPOCTEON$ 49.00
€ 44.10
£ 39.69
¥ 5,063.17
1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
3 W
3,000 mW
0.00402 hp
0.003 kW
300 MHz
0.3 GHz
300,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3110-300 EXPOCTEON$ 49.00
€ 44.10
£ 39.69
¥ 5,063.17
1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
3 W
3,000 mW
0.00402 hp
0.003 kW
300 MHz
0.3 GHz
300,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3110-300 NSPOCTEON$ 49.00
€ 44.10
£ 39.69
¥ 5,063.17
1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
3 W
3,000 mW
0.00402 hp
0.003 kW
300 MHz
0.3 GHz
300,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3110-300 SCPOCTEON$ 49.00
€ 44.10
£ 39.69
¥ 5,063.17
1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
3 W
3,000 mW
0.00402 hp
0.003 kW
300 MHz
0.3 GHz
300,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3110-400 CPOCTEON1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
400 MHz
0.4 GHz
400,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3110-400 EXPOCTEON1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
400 MHz
0.4 GHz
400,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3110-400 NSPOCTEON1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
400 MHz
0.4 GHz
400,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3110-400 SCPOCTEON1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
400 MHz
0.4 GHz
400,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3110-500 CPOCTEON1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
500 MHz
0.5 GHz
500,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3110-500 EXPOCTEON1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
500 MHz
0.5 GHz
500,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3110-500 NSPOCTEON1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
500 MHz
0.5 GHz
500,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3110-500 SCPOCTEON1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
500 MHz
0.5 GHz
500,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3110-550 CPOCTEON1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
7 W
7,000 mW
0.00939 hp
0.007 kW
550 MHz
0.55 GHz
550,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3110-550 EXPOCTEON1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
7 W
7,000 mW
0.00939 hp
0.007 kW
550 MHz
0.55 GHz
550,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3110-550 NSPOCTEON1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
7 W
7,000 mW
0.00939 hp
0.007 kW
550 MHz
0.55 GHz
550,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3110-550 SCPOCTEON1 May 20061256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
7 W
7,000 mW
0.00939 hp
0.007 kW
550 MHz
0.55 GHz
550,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3120-300 CPOCTEON1 May 20062256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
3 W
3,000 mW
0.00402 hp
0.003 kW
300 MHz
0.3 GHz
300,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3120-300 EXPOCTEON1 May 20062256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
3 W
3,000 mW
0.00402 hp
0.003 kW
300 MHz
0.3 GHz
300,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3120-300 NSPOCTEON1 May 20062256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
3 W
3,000 mW
0.00402 hp
0.003 kW
300 MHz
0.3 GHz
300,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3120-300 SCPOCTEON1 May 20062256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
3 W
3,000 mW
0.00402 hp
0.003 kW
300 MHz
0.3 GHz
300,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3120-400 CPOCTEON1 May 20062256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
400 MHz
0.4 GHz
400,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3120-400 EXPOCTEON1 May 20062256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
400 MHz
0.4 GHz
400,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3120-400 NSPOCTEON1 May 20062256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
400 MHz
0.4 GHz
400,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3120-400 SCPOCTEON1 May 20062256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
400 MHz
0.4 GHz
400,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3120-500 CPOCTEON1 May 20062256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
500 MHz
0.5 GHz
500,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3120-500 EXPOCTEON1 May 20062256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
500 MHz
0.5 GHz
500,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3120-500 NSPOCTEON1 May 20062256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
500 MHz
0.5 GHz
500,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3120-500 SCPOCTEON1 May 20062256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
500 MHz
0.5 GHz
500,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3120-550 CPOCTEON$ 125.00
€ 112.50
£ 101.25
¥ 12,916.25
1 May 20062256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
7 W
7,000 mW
0.00939 hp
0.007 kW
550 MHz
0.55 GHz
550,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3120-550 EXPOCTEON$ 125.00
€ 112.50
£ 101.25
¥ 12,916.25
1 May 20062256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
7 W
7,000 mW
0.00939 hp
0.007 kW
550 MHz
0.55 GHz
550,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3120-550 NSPOCTEON$ 125.00
€ 112.50
£ 101.25
¥ 12,916.25
1 May 20062256 KiB
0.25 MiB
262,144 B
2.441406e-4 GiB
7 W
7,000 mW
0.00939 hp
0.007 kW
550 MHz
0.55 GHz
550,000 kHz
DDR2-6674,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
CN3630-400 EXPOCTEONAugust 20054512 KiB
0.5 MiB
524,288 B
4.882812e-4 GiB
14 W
14,000 mW
0.0188 hp
0.014 kW
400 MHz
0.4 GHz
400,000 kHz
DDR2-80016,384 MiB
16,777,216 KiB
17,179,869,184 B
16 GiB
0.0156 TiB
CN3630-400 NSPOCTEONAugust 20054512 KiB
0.5 MiB
524,288 B
4.882812e-4 GiB
14 W
14,000 mW
0.0188 hp
0.014 kW
400 MHz
0.4 GHz
400,000 kHz
DDR2-80016,384 MiB
16,777,216 KiB
17,179,869,184 B
16 GiB
0.0156 TiB
CN3630-400 SCPOCTEONAugust 20054512 KiB
0.5 MiB
524,288 B
4.882812e-4 GiB
14 W
14,000 mW
0.0188 hp
0.014 kW
400 MHz
0.4 GHz
400,000 kHz
DDR2-80016,384 MiB
16,777,216 KiB
17,179,869,184 B
16 GiB
0.0156 TiB
CN3630-500 EXPOCTEONAugust 20054512 KiB
0.5 MiB
524,288 B
4.882812e-4 GiB
500 MHz
0.5 GHz
500,000 kHz
DDR2-80016,384 MiB
16,777,216 KiB
17,179,869,184 B
16 GiB
0.0156 TiB
CN3630-500 NSPOCTEONAugust 20054512 KiB
0.5 MiB
524,288 B
4.882812e-4 GiB
500 MHz
0.5 GHz
500,000 kHz
DDR2-80016,384 MiB
16,777,216 KiB
17,179,869,184 B
16 GiB
0.0156 TiB
CN3630-500 SCPOCTEONAugust 20054512 KiB
0.5 MiB
524,288 B
4.882812e-4 GiB
500 MHz
0.5 GHz
500,000 kHz
DDR2-80016,384 MiB
16,777,216 KiB
17,179,869,184 B
16 GiB
0.0156 TiB
CN3630-600 EXPOCTEONAugust 20054512 KiB
0.5 MiB
524,288 B
4.882812e-4 GiB
600 MHz
0.6 GHz
600,000 kHz
DDR2-80016,384 MiB
16,777,216 KiB
17,179,869,184 B
16 GiB
0.0156 TiB
Count: 168
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