A chain of two fibers no longer moves between cores when the inline
budget runs out, and the skewed choose takes 181 ns at best, not 230.
The ring rows move by a nanosecond or two, and the spawn row to 210 ns.
The text says that the spawn row is slow only on many cores: on two or
four, the current scheduler spawns faster than the pool did.
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The ring, spawn and choose rows are measured again. Spawn and choose cost
about twice what they did, with the scheduler that replaced the .NET
pool, and several sentences no longer held: an event synced alone costs
nothing over chan-put, a choose allocates 56 bytes, and Hopac's choose
stays ahead with a cancel IVar.
A new section gives bench/service against Go and Hopac: the closed loop,
and the open loop with latency taken from when a request was due.
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The Scopes section shows a with-scope in a defun, and own!, own-disposable
and release!. The Macros section has a section on by-colour.
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Part II's section on concurrency has a new subsection, "Shared state:
atomics and transactions": when to share data instead of sending it,
locations and atomically, the rules for a transaction function, waiting
with tx-retry, a transaction as an event in a choose, tx-or-else, the
queue, map and counter, and what transactions cost. The examples use
the card game and were compiled and run.
Part III has a section on std/stm that links the four reference pages:
(std stm), and (std stm queue), (std stm map) and (std stm counter) in
a directory of their own, as (text xml) has.
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The REPL no longer relies on rlwrap. Say what it does at a terminal
instead (history, Enter continuing an open form), how Tab completes,
and that :complete gives editors the same completions.
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The Go table is refreshed with a new run (the numbers moved within the
noise), and the section gains a Hopac part: the same rows on the same
.NET runtime, plain and with every operation raced against a cancel
IVar, with what the numbers show. Hopac is ahead without cancellation
and far behind with one shared cancel IVar, and allocates more.
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The channels section introduces chan-put and chan-get beside the event
forms. A new section compares the CML benchmarks with their Go twins, with
Bjolang measured both syncing events and with chan-put/chan-get and Go both
plain and racing ctx.Done(), and says what Bjolang has that Go does not:
events as values and structured scopes.
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- (.field value), and get, try-get, set and update for reading and copying
along a path of fields and keys, with ref-set in the generic operations.
- please-hoist-i-promise-i-am-not-naughty, in the macros section.
- (std set) is (std hashset), and the collector is hash-setting.
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The clause table, stopping early and nesting use the new names, and
count-lines uses :until instead of a counter that only drove the loop.
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index.sz is a landing page pointing to the manual, now manual.sz, and to
modules/, where each library module has a page made by @generate-docs from
the docs it was compiled with. The chapters gain appendices, and part III
links each module to its page. glasnost's page cache is ignored.
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