lib: refactored scheduling policy assignment #32663
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lib/internal/cluster/master.js
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| // XXX(bnoordhuis) Fold cluster.schedulingPolicy into cluster.settings? | ||
| let { [process.env.NODE_CLUSTER_SCHED_POLICY]: schedulingPolicy } = schedulingPolicies; |
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lint-js rule check error is triggered :)
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@nodejs/cluster |
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I'm really rather lukewarm when it comes to changes like this one. I might be biased because I wrote the current code but the new code is arguably less readable than the code it replaces. |
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@bnoordhuis is it specific to destructuring or the naming. Just wanted to know the cause 😄 |
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The destructuring. It's not that it's incredibly complex or difficult to follow, just harder to parse than the current code (IMO.) |
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@bnoordhuis what should be the correct approach then according to you, because previously we are pulling the scheduling policy straight out from the hash which is not implying anything in general. 🤔 |
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Well, if you want to make an improvement, how about this? let schedulingPolicy = process.env.NODE_CLUSTER_SCHED_POLICY;
if (schedulingPolicy === 'rr')
schedulingPolicy = SCHED_RR;
else if (schedulingPolicy === 'none')
schedulingPolicy = SCHED_NONE;
else if (process.platform === 'win32')
// Round-robin doesn't perform well on Windows due to the way IOCP is wired up.
schedulingPolicy = SCHED_NONE;
else
schedulingPolicy = SCHED_RR;That at least protects It's a marginal improvement but marginal improvements are improvements too. :-) |
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In previous implementation it was clubbed into declaration of scheduling policies and fetching the schedulingPolicy. Now they are separate variables, so that in future if one want to add new scheduling policy. It is much simpler and not obsfucated.
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bnoordhuis
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BridgeAR
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In previous implementation it was clubbed into declaration of scheduling policies and fetching the schedulingPolicy. Now they are separate variables, so that in future if one want to add new scheduling policy. It is much simpler and not obsfucated. PR-URL: #32663 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
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In previous implementation it was clubbed into declaration of scheduling policies and fetching the schedulingPolicy. Now they are separate variables, so that in future if one want to add new scheduling policy. It is much simpler and not obsfucated. PR-URL: #32663 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
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In previous implementation it was clubbed into declaration of scheduling policies and fetching the schedulingPolicy. Now they are separate variables, so that in future if one want to add new scheduling policy. It is much simpler and not obsfucated. PR-URL: #32663 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
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In previous implementation it was clubbed into declaration of scheduling
policies and fetching the schedulingPolicy. Now they are separate
variables, so that in future if one want to add new scheduling policy.
It is much simpler and not obsfucated.
Checklist
make -j4 test(UNIX), orvcbuild test(Windows) passes