[Mining Issue] Window post failed, it take too much time than usual.

[panyang1217]

Describe the problem

Get a serious problem about window post. Why did "vanilla_proofs" start delayed 20 min since window post started, that caused my window post can not finished in time.

Version

Daemon: 1.5.0+mainnet+git.55b85f314.dirty+api1.0.1
Local: lotus-miner version 1.5.0+mainnet+git.55b85f314.dirty

Setup

AMD 7272 CPU and 3090 GPU

Lotus daemon and miner logs

2021-03-31T02:02:09.341 INFO filcrypto::proofs::api > generate_window_post: start
2021-03-31T02:02:53.083 INFO filcrypto::proofs::api > verify_seal: start
2021-03-31T02:02:53.083 INFO filecoin_proofs::api::seal > verify_seal:start: SectorId(2461)
2021-03-31T02:02:53.083 INFO filecoin_proofs::caches > trying parameters memory cache for: STACKED[34359738368]-verifying-key
2021-03-31T02:02:53.083 INFO filecoin_proofs::caches > found params in memory cache for STACKED[34359738368]-verifying-key
2021-03-31T02:02:53.083 INFO filecoin_proofs::api::seal > got verifying key (34359738368) while verifying seal
2021-03-31T02:02:53.090 INFO filecoin_proofs::api::seal > verify_seal:finish: SectorId(2461)
2021-03-31T02:02:53.091 INFO filcrypto::proofs::api > verify_seal: finish
2021-03-31T02:05:02.918 INFO filecoin_proofs::api::post > generate_window_post:start
2021-03-31T02:05:02.918 INFO filecoin_proofs::caches > trying parameters memory cache for: Window_POST[34359738368]
2021-03-31T02:05:02.919 INFO filecoin_proofs::caches > found params in memory cache for Window_POST[34359738368]
2021-03-31T02:20:01.446 INFO filcrypto::proofs::api > verify_seal: start
2021-03-31T02:20:01.446 INFO filecoin_proofs::api::seal > verify_seal:start: SectorId(2464)
2021-03-31T02:20:01.446 INFO filecoin_proofs::caches > trying parameters memory cache for: STACKED[34359738368]-verifying-key
2021-03-31T02:20:01.446 INFO filecoin_proofs::caches > found params in memory cache for STACKED[34359738368]-verifying-key
2021-03-31T02:20:01.446 INFO filecoin_proofs::api::seal > got verifying key (34359738368) while verifying seal
2021-03-31T02:20:01.454 INFO filecoin_proofs::api::seal > verify_seal:finish: SectorId(2464)
2021-03-31T02:20:01.454 INFO filcrypto::proofs::api > verify_seal: finish
2021-03-31T02:20:24.991 INFO storage_proofs_core::compound_proof > vanilla_proofs:start
2021-03-31T02:22:33.213 INFO filcrypto::proofs::api > verify_seal: start
2021-03-31T02:22:33.213 INFO filecoin_proofs::api::seal > verify_seal:start: SectorId(2462)
2021-03-31T02:22:33.213 INFO filecoin_proofs::caches > trying parameters memory cache for: STACKED[34359738368]-verifying-key
2021-03-31T02:22:33.213 INFO filecoin_proofs::caches > found params in memory cache for STACKED[34359738368]-verifying-key
2021-03-31T02:22:33.213 INFO filecoin_proofs::api::seal > got verifying key (34359738368) while verifying seal
2021-03-31T02:22:33.221 INFO filecoin_proofs::api::seal > verify_seal:finish: SectorId(2462)

** Code modifications **

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