PFS存储引擎10/17/22 2 Why ●为了减少使用cpu做内存copy，减少系统调用 ●发挥某些被操作系统屏蔽的功能，例如nvme write zero ●根据阿里《When Cloud Storage Meets RDMA》的说法 ●在100Gbps网络带宽时，内存带宽成为瓶颈 ●Intel Memory Latency Checker (MLC)测试得到的CPU内存带宽是 61Gbps10/17/22

implementation of the Smalltalk-80 System The Smalltalk-80 programming language includes dynamic storage allocation, full upward funargs, and universally polymorphic procedures. The Smalltalk-80 programming implementation of the Smalltalk-80 System The Smalltalk-80 programming language includes dynamic storage allocation, full upward funargs, and universally polymorphic procedures. The Smalltalk-80 programming implementation of the Smalltalk-80 System The Smalltalk-80 programming language includes dynamic storage allocation, full upward funargs, and universally polymorphic procedures. The Smalltalk-80 programming

structure or object state into a format that can be stored (e.g. files in secondary storage devices, data buffers in primary storage devices) or transmitted (e.g. data streams over computer networks) and reconstructed structure or object state into a format that can be stored (e.g. files in secondary storage devices, data buffers in primary storage devices) or transmitted (e.g. data streams over computer networks) and reconstructed Output • The output is a Data buffer. The buffer is a flat, contiguous block of data designed for storage or transmission. • As illustrated in the diagram, the data buffer is a single, uninterrupted space

Sparse Arrays 1461 92.1 Compressed Sparse Column (CSC) Sparse Matrix Storage . . . . . . . . . . . . . . . 1461 92.2 Sparse Vector Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . comparable systems include: • Free and open source (MIT licensed) • User-defined types are as fast and compact as built-ins • No need to vectorize code for performance; devectorized code is fast • Designed if there are leading zero digits which don’t contribute to the value, they count for determining storage size of a literal. So 0x01 is a UInt8 while 0x0001 is a UInt16. That allows the user to control

Sparse Arrays 1461 92.1 Compressed Sparse Column (CSC) Sparse Matrix Storage . . . . . . . . . . . . . . . 1461 92.2 Sparse Vector Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . comparable systems include: • Free and open source (MIT licensed) • User-defined types are as fast and compact as built-ins • No need to vectorize code for performance; devectorized code is fast • Designed if there are leading zero digits which don’t contribute to the value, they count for determining storage size of a literal. So 0x01 is a UInt8 while 0x0001 is a UInt16. That allows the user to control

Display settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 3.6 Storage settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 3.7 Audio settings 4.8.2 Page Fusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 5 Virtual storage 76 5.1 Hard disk controllers: IDE, SATA (AHCI), SCSI, SAS . . . . . . . . . . . . . . . . 76 5.2 graphical frontend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 9.8 Advanced storage configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 9.8.1 Using a raw host hard

Sparse Arrays 1708 94.1 Compressed Sparse Column (CSC) Sparse Matrix Storage . . . . . . . . . . . . . . . 1708 94.2 Sparse Vector Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . comparable systems include: • Free and open source (MIT licensed) • User-defined types are as fast and compact as built-ins • No need to vectorize code for performance; devectorized code is fast • Designed if there are leading zero digits which don’t contribute to the value, they count for determining storage size of a literal. So 0x01 is a UInt8 while 0x0001 is a UInt16. That allows the user to control

Sparse Arrays 1708 94.1 Compressed Sparse Column (CSC) Sparse Matrix Storage . . . . . . . . . . . . . . . 1708 94.2 Sparse Vector Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . comparable systems include: • Free and open source (MIT licensed) • User-defined types are as fast and compact as built-ins • No need to vectorize code for performance; devectorized code is fast • Designed if there are leading zero digits which don’t contribute to the value, they count for determining storage size of a literal. So 0x01 is a UInt8 while 0x0001 is a UInt16. That allows the user to control

Sparse Arrays 1708 94.1 Compressed Sparse Column (CSC) Sparse Matrix Storage . . . . . . . . . . . . . . . 1708 94.2 Sparse Vector Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . comparable systems include: • Free and open source (MIT licensed) • User-defined types are as fast and compact as built-ins • No need to vectorize code for performance; devectorized code is fast • Designed if there are leading zero digits which don’t contribute to the value, they count for determining storage size of a literal. So 0x01 is a UInt8 while 0x0001 is a UInt16. That allows the user to control

Display settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 3.6 Storage settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 3.7 Audio settings 4.8.2 Page Fusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 5 Virtual storage 79 5.1 Hard disk controllers: IDE, SATA (AHCI), SCSI, SAS . . . . . . . . . . . . . . . . 79 5.2 graphical frontend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161 9.8 Advanced storage configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 161 9.8.1 Using a raw host hard