Author Topic: CPU Transactions per second numerical instability for SERT  (Read 280 times)

Ian Lin

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CPU Transactions per second numerical instability for SERT
« on: January 16, 2020, 09:02:06 PM »
Hi Sir

I encountered some problems recently testing SERT
Questions about "Transactions per second numerical instability"
(The CPU warm-up parameters have been adjusted, but some highs and lows cannot be resolved)
Is there any other way to solve this problem? thanks.

WARNING: CPU:Compress:100%: Transactions per second was 97.4% of target, near the limit of at least 96.0%
WARNING: CPU:CryptoAES:100%: Transactions per second was 102.2% of target, near the limit of at most 104.0%
WARNING: CPU:LU:100%: Transactions per second was 97.0% of target, near the limit of at least 96.0%
INVALID: CPU:SOR:100%: Transactions per second was 95.4% of target (threshold is at least 96.0%)
INVALID: CPU:Sort:100%: Transactions per second was 94.1% of target (threshold is at least 96.0%)
INVALID: Storage:Sequential:100%: Transactions per second was 105.7% of target (threshold is at most 105.0%)

GregDarnell

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Re: CPU Transactions per second numerical instability for SERT
« Reply #1 on: January 16, 2020, 11:52:54 PM »
Hello Ian,
Some variation is expected, but this seems higher than we would like to see.  Can you tell us what SERT version you are using, what CPU you are testing, and what client configuration is being used for the testing?
Best regards,
Greg

Ian Lin

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Re: CPU Transactions per second numerical instability for SERT
« Reply #2 on: January 17, 2020, 02:55:29 AM »
Hi Greg

SERT 2.0.1
CPU Intel(R) Xeon(R) Silver 4209T CPU 6g@ 2.20GHz  x 2pcs
Memorry Samsung,K4A8G085WB,DDR4,21300(2666MHz),8GB,Register,Montage,19,by 8,1 rank,MP, NA,NA,NA  x 16pcs
SSD Samsung MZ7LM960HCHP-000AZ SSD,SATAIII,960GB,SATAIII,2.5 - 7mm,6Gb/s,NA_1,NA_1,NA_1, 960G x 2pcs

Mike Petrich

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Re: CPU Transactions per second numerical instability for SERT
« Reply #3 on: February 12, 2020, 09:33:34 AM »
Hi Greg

SERT 2.0.1
CPU Intel(R) Xeon(R) Silver 4209T CPU 6g@ 2.20GHz  x 2pcs
Memorry Samsung,K4A8G085WB,DDR4,21300(2666MHz),8GB,Register,Montage,19,by 8,1 rank,MP, NA,NA,NA  x 16pcs
SSD Samsung MZ7LM960HCHP-000AZ SSD,SATAIII,960GB,SATAIII,2.5 - 7mm,6Gb/s,NA_1,NA_1,NA_1, 960G x 2pcs

Hi Ian, I'm sorry you're having issues running SERT. My initial suggestion would be to try to recreate on the latest version on SERT. Instructions for updating SERT2 can be found here: https://www.spec.org/sert2/sert_patches/sert-update.html

If this doesn't resolve your issue, it might be beneficial to open a support ticket including some debug data via the collectlogfiles script. Details on this process can be found here: https://www.spec.org/sert/feedback/issuereport.html