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Sbcl hash-table

WebThe SBCL implementation is somewhat simplified from the CMUCL one by Timothy Moore, but the basic idea and mechanism remain identical: instead of having addresses from … WebFeb 13, 2014 · As mandated by the standard, SBCL offers hash tables and exposes pre-defined hash functions. Interactions with other parts of the system make it challenging to improve general-purpose hash tables. However, type-specialised hash tables seem approachable, as does improving the quality of the standard hash functions. If completed,

[Sbcl-devel] with-locked-hash-table and interrupts

WebI was also wondering whether SBCL support weak hash tables, and was thinking the answer is no, because they are not mentioned in the SBCL manual and Google is not your friend, either[1], but apparently the answer was right in front of my nose. BTW, are weak hash tables considered stable at this point? >> 1/ Multiple threads can safely read from ... WebMirror of Steel Bank Common Lisp (SBCL)'s official repository - sbcl/early-objdef.lisp at master · sbcl/sbcl. Mirror of Steel Bank Common Lisp (SBCL)'s official repository - sbcl/early-objdef.lisp at master · sbcl/sbcl ... All hash-table backing vectors are marked with this bit.;; Essentially it informs GC that the vector has a high-water mark. small light reflector https://yangconsultant.com

Static Executables with SBCL - Eric Timmons

Websbcl/src/code/hash-table.lisp Go to file Go to fileT Go to lineL Copy path Copy permalink This commit does not belong to any branch on this repository, and may belong to a fork … Web{"inputs":[{"filename":"/gnu/store/142cpsqsbwnrc11na3bhxcxm9j5s7281-tar-1.32.drv","out_name":["out"]},{"filename":"/gnu/store/fhzi04ip8jry4xc26nkzwbwjj1h7cck1-gnutls ... WebFeb 17, 2003 · We also describe a hash table data structure using explicit constant time hash functions, using at most d = O (ln2 1/∈ ) probes in the worst case. A corollary is an expected linear time... high-rise movie trailer

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Category:Writing a Damn Fast Hash Table With Tiny Memory Footprints

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Sbcl hash-table

[Sbcl-commits] master: Combine linkage-table.lisp into foreign.lisp …

WebMay 29, 2011 · I'm not sure if the meaning here is that SBCL's internal hash-tables should keep interrupts disabled -- which I can certainly understand -- or if there is something non-obvious in the hash-table code that makes interrupts arriving during a locked section fundamentally unsafe? WebApr 13, 2013 · As mandated by the standard, SBCL offers hash tables and exposes pre-defined hash functions. Interactions with other parts of the system make it challenging to improve general-purpose hash tables. However, type-specialised hash tables seem approachable, as does improving the quality of the standard hash functions.

Sbcl hash-table

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Websbcl/src/code/target-hash-table.lisp. Go to file. Cannot retrieve contributors at this time. 2223 lines (2077 sloc) 117 KB. Raw Blame. ;;;; that part of the implementation of HASH … WebMar 28, 2024 · Not all platforms have the latest binaries, but SBCL is still supported and working on these platforms. An older binary (or provided by an OS repository / homebrew / …

WebOct 17, 2024 · A fast concurrent hash table. 42nd At Threadmill is a nearly lock-free* hash table based on Cliff Click's NonBlockingHashMap, and Abseil's flat_hash_map. We use the general layout of the former, and the fast metadata-based probing trick of the latter. We are aware of the table being very, very picky with hash functions (Abseil's table is like ... WebOct 20, 2024 · The motivation for this is to enable a programmer to use hash tables deterministically, with the output being independent of the hash function or other details …

WebJan 31, 2024 · > Implement the global package table differently > > As much as it would be nice to use a standard SBCL hash-table, > the basic hash-table is not threadsafe for reading without a lock. > The code in src/code/target-lfhash doesn't implement deletion > which is needed for DELETE-PACKAGE and doesn't allow for 0-filling http://www.sbcl.org/manual/

WebJan 5, 2024 · First is a Lisp-side hash table that maps foreign names (and an indicator of if it is data or a function) to an integer. The second is a C-side vector that contains either the …

WebAs of 1.0.25.15 (below for convenience) WITH-LOCKED-HASH-TABLE also disables interrupts for its body. >From the commit message it is not clear to me why. WITH-LOCKED-HASH-TABLE should IMO be considered a user lock. To me it is morally analogous to a user have an external lock and grabbing that around accesses to a hash-table. I'm not sure if ... high-rise or high riseWebPresumably SBCL is doing something similar for similar reasons. ... The excl::hash-table-stats function demonstrates this when given a hash-table with structs used as keys; the histogram becomes the worst case, because every key wants the same index. The decision was made to keep the same behavior for structure objects, because the automatic ... high-rise movie explainedWebMay 5, 2011 · 1 Answer Sorted by: 11 MAPHASH maps a function with two arguments over a hash table for side effects. The two arguments are the key and value of each item in the … high-rise modernizationhttp://www.sbcl.org/sbcl-internals/Linkage_002dtable.html high-rise pile capWeb4.1.1 Differences to CMUCL. CMUCL does lazy linkage for code, keeps all foreign addresses in the linkage-table, and handles the initialization from C. We do eager linkage for everything, maintain a separate *STATIC-FOREIGN-SYMBOLS* just like on non-linkage-table ports (this allows more code sharing between ports, makes thread-safety easier to ... small light stand for flashWeb{"inputs":[{"filename":"/gnu/store/29ym6fnz6z48fdb9yh1kcijry8gslzz4-module-import-compiled.drv","out_name":["out"]},{"filename":"/gnu/store ... high-rise movie streamhttp://www.sbcl.org/gsoc2015/ideas/ high-rise sloan legging