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Files and Crypto

Files and Crypto

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531 views • 44 slides
The Buffer Cache

The Buffer Cache

The Buffer Cache. Jeff Chase Duke University. The kernel. syscall trap/return. fault/return. system call layer : file API fault entry : VM page faults. memory management : block/page cache. policy. I/O completions. timer ticks. interrupt/return. DeFiler interfaces: overview.

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413 views • 25 slides
The Buffer Cache

The Buffer Cache

The Buffer Cache. Jeff Chase Duke University. The kernel. syscall trap/return. fault/return. system call layer : file API fault entry : VM page faults. memory management : block/page cache. policy. I/O completions. timer ticks. interrupt/return. DeFiler interfaces: overview.

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263 views • 25 slides
DeFiler interfaces

DeFiler interfaces

DeFiler interfaces. create , destroy , read , write a dfile. list dfiles, sync (). DFS. read (), write () startFetch (), startPush () waitValid (), waitClean () isBusy (). DBuffer dbuf = getBlock (blockID) releaseBlock (dbuf) sync (). DBufferCache. DBuffer. ioComplete ()

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254 views • 14 slides
DeFiler interfaces

DeFiler interfaces

DeFiler interfaces. create , destroy , read , write a dfile. list dfiles, sync (). DFS. read (), write () startFetch (), startPush () waitValid (), waitClean () isBusy (). DBuffer dbuf = getBlock (blockID) releaseBlock (dbuf) sync (). DBufferCache. DBuffer. ioComplete ()

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147 views • 14 slides

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