Glutton pallet #12833

Szegoo · 2022-12-03T15:07:11Z

Glutton

Pallet

The purpose of the pallet is to test the limits of Kusama. The root origin can configure what percentage of the ref-time and proof size to consume from the leftover weight.

The on_idle hook of the pallet starts off by consuming the proof size and after that, if some ref-time is left over it runs the waste_ref_time function which hashes some arbitrary data using the Blake2 hashing algorithm.

The proof size consumption is achieved by reading from a storage map inside the pallet called TrashData. The data inside this storage map has to be initialized by calling the initialize_pallet extrinsic which is only callable by the root origin.

Glutton Parachains

The parachains that will be used for testing the limits of Kusama will be called Glutton Parachains.

It has the double meaning of one who over-consumes (the parachain), but also one who relishes in enduring something (i.e. "glutton for punishment"), and it is seeing how much validators can endure from parachains.

Closes: #12772

Polkadot address: 126X27SbhrV19mBFawys3ovkyBS87SGfYwtwa8J2FjHrtbmA

frame/pov-limit/src/lib.rs

frame/pov-limit/src/weights.rs

frame/pov-limit/src/benchmarking.rs

frame/pov-limit/src/lib.rs

ggwpez · 2023-02-20T11:48:52Z

bot bench $ pallet dev pallet_glutton

frame/glutton/src/lib.rs

koute · 2023-02-20T12:48:52Z

frame/glutton/src/lib.rs

+
+			let clobber = Self::waste_ref_time_iter(vec![0u8; 64], n);
+
+			// By casting it into a vec we can hopefully prevent the compiler from optimizing it


Usually you'd use something like std::ptr::read_volatile to prevent the compiler from optimizing a variable out. (These reads are guaranteed to not be elided or reordered by the compiler.)

Interesting. Didn't know about this feature in rust. IIUC this is an unsafe function but since we are not using std::ptr::write_volatile this is kind of safe. But I still think we are better off here using our current approach. @ggwpez Thoughts?

Yea I would rather not put unsafe into the runtime code - even if that is the more correct way.
I think it should be fine in this case, or?

Yes, the code should be also okay the way it is. unsafe isn't that bad and we also use unsafe in the runtime (but just hidden :P).

The way to go would probably be to just make an utility function somewhere that would wrap the unsafe call and make 100% sure it's always safe. There's at least one more place that I know of where this would be useful, if not more. :P

The thing with unsafe isn't that it should never be used, it's just that its use should be limited (it shouldn't be sprinkled all over the code), neatly encapsulated in a safe interface, and very carefully written and reviewed (ideally by experts).

But yeah, if it works then the way it is now is fine for now. It was more of a drive-by comment rather than a "hey, change this".

frame/glutton/src/lib.rs

frame/glutton/README.md

Co-authored-by: Koute <[email protected]>

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

ggwpez · 2023-02-20T19:26:15Z

bot rebase

ggwpez · 2023-02-20T19:43:28Z

bot bench $ pallet dev pallet_glutton

ggwpez · 2023-02-20T19:43:45Z

bot clean

command-bot · 2023-02-20T20:15:46Z

@ggwpez Command "$PIPELINE_SCRIPTS_DIR/commands/bench/bench.sh" pallet dev pallet_glutton has finished. Result: https://gitlab.parity.io/parity/mirrors/substrate/-/jobs/2418567 has finished. If any artifacts were generated, you can download them from https://gitlab.parity.io/parity/mirrors/substrate/-/jobs/2418567/artifacts/download.

ggwpez · 2023-02-21T17:04:05Z

Any last words? Otherwise going to merge in a few hours.

ggwpez · 2023-02-21T22:39:18Z

bot merge

* Pov-Limit pallet * use Perbill & fixes * fixes * reads & writes * update docs * tests * calculate weight * fmt * benchmark * logic fix * naming fix * caclulate computation weight limit * make the Hasher generic * make the code compile * generate weight * fix on_idle * fix * fix * make reading generic * fix? * fixes * remove warning * fix * hasher fix :D * change value * test * actual weight and expected weight are the same * update * fix * add events * remove useless line * using actual hashing algorithm * better readability * fix nits * Update Signed-off-by: Oliver Tale-Yazdi <[email protected]> * add migration * hardcode proof_size in weights.rs * format * fixes * Fix weight * docs * fix * Update frame/pov-limit/src/lib.rs Co-authored-by: Bastian Köcher <[email protected]> * Update frame/pov-limit/src/lib.rs Co-authored-by: Bastian Köcher <[email protected]> * empty on_ilde & update weight.rs * remove migration & fix benchmark * remove migration from migrations * initialize_pallet * use blake2 * Update frame/pov-limit/Cargo.toml Co-authored-by: Bastian Köcher <[email protected]> * Update frame/pov-limit/src/lib.rs Co-authored-by: Bastian Köcher <[email protected]> * Update frame/pov-limit/Cargo.toml Co-authored-by: Bastian Köcher <[email protected]> * rename pallet * make the wasters non-generic * rename to glutton * fix * small fixes & run benchmark * increase left over ref-time in tests * Update frame/glutton/src/lib.rs Co-authored-by: Bastian Köcher <[email protected]> * or values * fix * generate weight * Update frame/glutton/Cargo.toml Co-authored-by: Oliver Tale-Yazdi <[email protected]> * fix nits * Adjustments Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Fixes Signed-off-by: Oliver Tale-Yazdi <[email protected]> * fix * Update weights Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Tweak constants Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Update weights Signed-off-by: Oliver Tale-Yazdi <[email protected]> * remove genesis config * passing tests * More precise results Signed-off-by: Oliver Tale-Yazdi <[email protected]> * update node-executor test * Calculate number of iterations in advance Signed-off-by: Oliver Tale-Yazdi <[email protected]> * increase criteria * Final fixes Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Update frame/glutton/src/tests.rs Co-authored-by: Kian Paimani <[email protected]> * Update frame/glutton/src/lib.rs Co-authored-by: Kian Paimani <[email protected]> * Update frame/glutton/src/lib.rs Co-authored-by: Kian Paimani <[email protected]> * fix typos * Update frame/glutton/src/lib.rs Co-authored-by: Bastian Köcher <[email protected]> * Update frame/glutton/src/lib.rs Co-authored-by: Bastian Köcher <[email protected]> * expand/shrink * fmt * Revert "Update frame/glutton/src/lib.rs" This reverts commit 98a237a. Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Use CountedStorageMap Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Add benchmark Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Use manual map counter Something with the R/W count in the benchmarking result did not add up. Need to investigate but for now just using a manual counter. Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Use new template Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Doc+typos Signed-off-by: Oliver Tale-Yazdi <[email protected]> * ".git/.scripts/commands/bench/bench.sh" pallet dev pallet_glutton * Apply suggestions from code review Co-authored-by: Koute <[email protected]> * Add minimal README Signed-off-by: Oliver Tale-Yazdi <[email protected]> * ".git/.scripts/commands/bench/bench.sh" pallet dev pallet_glutton --------- Signed-off-by: Oliver Tale-Yazdi <[email protected]> Co-authored-by: Oliver Tale-Yazdi <[email protected]> Co-authored-by: Bastian Köcher <[email protected]> Co-authored-by: Kian Paimani <[email protected]> Co-authored-by: command-bot <> Co-authored-by: Koute <[email protected]>

Polkadot-Forum · 2023-03-09T19:30:21Z

This pull request has been mentioned on Polkadot Forum. There might be relevant details there:

https://forum.polkadot.network/t/polkadot-release-analysis-v0-9-39/2277/1

* Pov-Limit pallet * use Perbill & fixes * fixes * reads & writes * update docs * tests * calculate weight * fmt * benchmark * logic fix * naming fix * caclulate computation weight limit * make the Hasher generic * make the code compile * generate weight * fix on_idle * fix * fix * make reading generic * fix? * fixes * remove warning * fix * hasher fix :D * change value * test * actual weight and expected weight are the same * update * fix * add events * remove useless line * using actual hashing algorithm * better readability * fix nits * Update Signed-off-by: Oliver Tale-Yazdi <[email protected]> * add migration * hardcode proof_size in weights.rs * format * fixes * Fix weight * docs * fix * Update frame/pov-limit/src/lib.rs Co-authored-by: Bastian Köcher <[email protected]> * Update frame/pov-limit/src/lib.rs Co-authored-by: Bastian Köcher <[email protected]> * empty on_ilde & update weight.rs * remove migration & fix benchmark * remove migration from migrations * initialize_pallet * use blake2 * Update frame/pov-limit/Cargo.toml Co-authored-by: Bastian Köcher <[email protected]> * Update frame/pov-limit/src/lib.rs Co-authored-by: Bastian Köcher <[email protected]> * Update frame/pov-limit/Cargo.toml Co-authored-by: Bastian Köcher <[email protected]> * rename pallet * make the wasters non-generic * rename to glutton * fix * small fixes & run benchmark * increase left over ref-time in tests * Update frame/glutton/src/lib.rs Co-authored-by: Bastian Köcher <[email protected]> * or values * fix * generate weight * Update frame/glutton/Cargo.toml Co-authored-by: Oliver Tale-Yazdi <[email protected]> * fix nits * Adjustments Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Fixes Signed-off-by: Oliver Tale-Yazdi <[email protected]> * fix * Update weights Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Tweak constants Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Update weights Signed-off-by: Oliver Tale-Yazdi <[email protected]> * remove genesis config * passing tests * More precise results Signed-off-by: Oliver Tale-Yazdi <[email protected]> * update node-executor test * Calculate number of iterations in advance Signed-off-by: Oliver Tale-Yazdi <[email protected]> * increase criteria * Final fixes Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Update frame/glutton/src/tests.rs Co-authored-by: Kian Paimani <[email protected]> * Update frame/glutton/src/lib.rs Co-authored-by: Kian Paimani <[email protected]> * Update frame/glutton/src/lib.rs Co-authored-by: Kian Paimani <[email protected]> * fix typos * Update frame/glutton/src/lib.rs Co-authored-by: Bastian Köcher <[email protected]> * Update frame/glutton/src/lib.rs Co-authored-by: Bastian Köcher <[email protected]> * expand/shrink * fmt * Revert "Update frame/glutton/src/lib.rs" This reverts commit 98a237a. Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Use CountedStorageMap Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Add benchmark Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Use manual map counter Something with the R/W count in the benchmarking result did not add up. Need to investigate but for now just using a manual counter. Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Use new template Signed-off-by: Oliver Tale-Yazdi <[email protected]> * Doc+typos Signed-off-by: Oliver Tale-Yazdi <[email protected]> * ".git/.scripts/commands/bench/bench.sh" pallet dev pallet_glutton * Apply suggestions from code review Co-authored-by: Koute <[email protected]> * Add minimal README Signed-off-by: Oliver Tale-Yazdi <[email protected]> * ".git/.scripts/commands/bench/bench.sh" pallet dev pallet_glutton --------- Signed-off-by: Oliver Tale-Yazdi <[email protected]> Co-authored-by: Oliver Tale-Yazdi <[email protected]> Co-authored-by: Bastian Köcher <[email protected]> Co-authored-by: Kian Paimani <[email protected]> Co-authored-by: command-bot <> Co-authored-by: Koute <[email protected]>

Pov-Limit pallet

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joepetrowski reviewed Dec 3, 2022

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ggwpez suggested changes Dec 4, 2022

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Szegoo added 5 commits December 6, 2022 17:21

use Perbill & fixes

7c0b552

fixes

1a50132

reads & writes

0e79cd3

update docs

24ac38a

tests

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Szegoo commented Dec 6, 2022

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Szegoo marked this pull request as ready for review December 6, 2022 21:20

bkchr reviewed Dec 6, 2022

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Szegoo and others added 2 commits December 7, 2022 17:48

calculate weight

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Merge branch 'master' into pov-limit

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Szegoo requested a review from bkchr December 8, 2022 07:45

Szegoo added 4 commits December 8, 2022 08:49

fmt

25153a1

benchmark

27868bd

logic fix

54f3117

naming fix

91178fb

Szegoo commented Dec 8, 2022

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ggwpez reviewed Dec 12, 2022

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ggwpez reviewed Dec 12, 2022

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caclulate computation weight limit

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Szegoo marked this pull request as draft December 13, 2022 08:59

Szegoo and others added 7 commits December 13, 2022 10:06

Merge branch 'paritytech:master' into pov-limit

24edc74

make the Hasher generic

9f48aba

make the code compile

f2abdfa

generate weight

36b049c

fix on_idle

79c7816

fix

b3f72d5

Merge branch 'paritytech:master' into pov-limit

810bcd6

".git/.scripts/commands/bench/bench.sh" pallet dev pallet_glutton

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kianenigma approved these changes Feb 20, 2023

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koute reviewed Feb 20, 2023

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ggwpez and others added 2 commits February 20, 2023 15:49

Apply suggestions from code review

2c8b112

Co-authored-by: Koute <[email protected]>

Add minimal README

0db5a70

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

Merge remote-tracking branch 'origin/master' into pov-limit

62f2d8d

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".git/.scripts/commands/bench/bench.sh" pallet dev pallet_glutton

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paritytech-processbot bot merged commit ea18266 into paritytech:master Feb 21, 2023

Szegoo mentioned this pull request Mar 9, 2023

Glutton Parachain paritytech/cumulus#2294

Merged

kiltbot mentioned this pull request Apr 3, 2023

[AUTOMATIC] Update Polkadot dependencies from 0.9.38 to 0.9.39 KILTprotocol/kilt-node#495

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librelois mentioned this pull request Apr 6, 2023

Update substrate/polkadot/cumulus from v0.9.38 to v0.9.40 moonbeam-foundation/moonbeam#2200

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kacperzuk-neti mentioned this pull request Jun 23, 2023

Polkadot v0.9.43 liberland/liberland_substrate#295

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joepetrowski mentioned this pull request Jul 18, 2023

Glutton Parachains paritytech/roadmap#37

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MOZGIII mentioned this pull request Nov 8, 2023

Tracking issue to bump substrate related deps to polkadot-v0.9.39 humanode-network/humanode#828

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Glutton pallet #12833

Glutton pallet #12833

Szegoo commented Dec 3, 2022 •

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Polkadot-Forum commented Mar 9, 2023


		let clobber = Self::waste_ref_time_iter(vec![0u8; 64], n);

		// By casting it into a vec we can hopefully prevent the compiler from optimizing it

Glutton pallet #12833

Glutton pallet #12833

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Szegoo commented Dec 3, 2022 • edited Loading

Glutton

Pallet

Glutton Parachains

ggwpez commented Feb 20, 2023

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