Throttle stream based on external input
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}
Looking at the signature of throttle in Akka Streams I see that it can take a cost function of type (Out) ⇒ Int to compute how the element passing through the stage affects the cost/per speed limit of elements sent downstream.
Is it possible to implement throttling based on external input for the stream with a built-in stage? If not, would it be easier just to implement a custom stage?
I'm expecting something like:
def throttle(cost: Int, per: FiniteDuration, maximumBurst: Int, costCalculation: ⇒ Int, mode: ThrottleMode): Repr[Out]
So that we could do something like:
throttle(75 /** 75% CPU **/, 1.second, 80 /** 80% CPU **/, getSinkCPU, ThrottleMode.Shaping)
akka-stream reactive-streams
asked Nov 22 '18 at 22:47
Samuel HeaneySamuel Heaney
545714
add a comment |
Looking at the signature of throttle in Akka Streams I see that it can take a cost function of type (Out) ⇒ Int to compute how the element passing through the stage affects the cost/per speed limit of elements sent downstream.
Is it possible to implement throttling based on external input for the stream with a built-in stage? If not, would it be easier just to implement a custom stage?
I'm expecting something like:
def throttle(cost: Int, per: FiniteDuration, maximumBurst: Int, costCalculation: ⇒ Int, mode: ThrottleMode): Repr[Out]
So that we could do something like:
throttle(75 /** 75% CPU **/, 1.second, 80 /** 80% CPU **/, getSinkCPU, ThrottleMode.Shaping)
akka-stream reactive-streams
asked Nov 22 '18 at 22:47
Samuel HeaneySamuel Heaney
545714
add a comment |
Looking at the signature of throttle in Akka Streams I see that it can take a cost function of type (Out) ⇒ Int to compute how the element passing through the stage affects the cost/per speed limit of elements sent downstream.
Is it possible to implement throttling based on external input for the stream with a built-in stage? If not, would it be easier just to implement a custom stage?
I'm expecting something like:
def throttle(cost: Int, per: FiniteDuration, maximumBurst: Int, costCalculation: ⇒ Int, mode: ThrottleMode): Repr[Out]
So that we could do something like:
throttle(75 /** 75% CPU **/, 1.second, 80 /** 80% CPU **/, getSinkCPU, ThrottleMode.Shaping)
akka-stream reactive-streams
asked Nov 22 '18 at 22:47
Samuel HeaneySamuel Heaney
545714
Looking at the signature of throttle in Akka Streams I see that it can take a cost function of type (Out) ⇒ Int to compute how the element passing through the stage affects the cost/per speed limit of elements sent downstream.
Is it possible to implement throttling based on external input for the stream with a built-in stage? If not, would it be easier just to implement a custom stage?
I'm expecting something like:
def throttle(cost: Int, per: FiniteDuration, maximumBurst: Int, costCalculation: ⇒ Int, mode: ThrottleMode): Repr[Out]
So that we could do something like:
throttle(75 /** 75% CPU **/, 1.second, 80 /** 80% CPU **/, getSinkCPU, ThrottleMode.Shaping)
akka-stream reactive-streams
akka-stream reactive-streams
asked Nov 22 '18 at 22:47
Samuel HeaneySamuel Heaney
545714
asked Nov 22 '18 at 22:47
Samuel HeaneySamuel Heaney
545714
edited Dec 8 '18 at 22:52
Samuel Heaney
asked Nov 22 '18 at 22:47
Samuel HeaneySamuel Heaney
545714
asked Nov 22 '18 at 22:47
Samuel HeaneySamuel Heaney
545714
asked Nov 22 '18 at 22:47
Samuel HeaneySamuel Heaney
545714
545714
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53438778%2fthrottle-stream-based-on-external-input%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53438778%2fthrottle-stream-based-on-external-input%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
