update dapps staking weights

[shunsukew]

Pull Request Summary
Optimized dapps staking weights by

1. excluding cached storage item access costs. related: DappsStaking bench improvements #112

2. executing benchmarking on a baremetal machine whose spec is closest to the substrate reference machine. https://github.com/paritytech/substrate/blob/8a3b2f2e0d4bcf9614dbf174ad2b24da6f9b0b44/frame/balances/src/weights.rs#L20.

Machine spec used

Hardware
CPU
Intel Xeon-E 2136 - 6c/12t - 3.3 GHz/4.5 GHz
RAM
32 GB ECC 2666 MHz

Data disks
2×500 GB SSD NVMe

Expansion cards
Soft RAID

machine bench result

2022-12-19 07:35:38 Running machine benchmarks...    
2022-12-19 07:36:04 
+----------+----------------+--------------+--------------+-------------------+
| Category | Function       | Score        | Minimum      | Result            |
+=============================================================================+
| CPU      | BLAKE2-256     | 1.01 GiB/s   | 1.00 GiB/s   | ✅ Pass (100.1 %) |
|----------+----------------+--------------+--------------+-------------------|
| CPU      | SR25519-Verify | 658.82 KiB/s | 666.00 KiB/s | ✅ Pass ( 98.9 %) |
|----------+----------------+--------------+--------------+-------------------|
| Memory   | Copy           | 14.51 GiB/s  | 14.32 GiB/s  | ✅ Pass (101.3 %) |
|----------+----------------+--------------+--------------+-------------------|
| Disk     | Seq Write      | 1.36 GiB/s   | 450.00 MiB/s | ✅ Pass (310.4 %) |
|----------+----------------+--------------+--------------+-------------------|
| Disk     | Rnd Write      | 497.77 MiB/s | 200.00 MiB/s | ✅ Pass (248.9 %) |
+----------+----------------+--------------+--------------+-------------------+
From 5 benchmarks in total, 5 passed and 0 failed (10% fault tolerance).    
2022-12-19 07:36:04 The hardware meets the requirements

In addition to machine benchmarks to see if machine requirement is met, I did pallet bench for pallet-balances and compare calculated weights with ones in the official substrate repo. This one (Intel(R) Xeon(R) E-2136 CPU @ 3.30GHz) is the most closest to it, others are more performant than this one.

For more info,
pallet-balances weights
actual in substrate vs tested on Intel(R) Xeon(R) E-2136 CPU @ 3.30GHz

[github-actions]

Package	Line Rate	Branch Rate	Health
precompiles/dapps-staking/src	93%	0%	✔
chain-extensions/types/rmrk/src	0%	0%	❌
precompiles/sr25519/src	79%	0%	➖
precompiles/utils/src	72%	0%	➖
frame/pallet-xvm/src	11%	0%	❌
frame/custom-signatures/src	54%	0%	➖
frame/dapps-staking/src	90%	0%	✔
chain-extensions/types/xvm/src	0%	0%	❌
frame/pallet-xcm/src	64%	0%	➖
chain-extensions/types/dapps-staking/src	0%	0%	❌
precompiles/substrate-ecdsa/src	78%	0%	➖
frame/collator-selection/src	80%	0%	➖
frame/xc-asset-config/src	67%	0%	➖
precompiles/assets-erc20/src	73%	0%	➖
precompiles/utils/macro/src	0%	0%	❌
precompiles/utils/macro/tests	0%	0%	❌
precompiles/utils/src/data	72%	0%	➖
precompiles/xcm/src	84%	0%	✔
frame/block-reward/src	85%	0%	✔
frame/dapps-staking/src/pallet	88%	0%	✔
primitives/xcm/src	66%	0%	➖
precompiles/xvm/src	94%	0%	✔
frame/pallet-xvm/src/pallet	33%	0%	❌
chain-extensions/dapps-staking/src	0%	0%	❌
chain-extensions/xvm/src	0%	0%	❌
chain-extensions/rmrk/src	0%	0%	❌
Summary	60% (2559 / 4279)	0% (0 / 0)	➖

Minimum allowed line rate is 50%

[Dinonard]

Great!

Might I suggest doing this for ALL our pallets?

[shunsukew]

@Dinonard
Yes, that's I was also thinking. but In a different task PR since not included in original planning.