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Evaluating Mitigations For Meltdown and Spectre: Benchmarking performance of mitigations against database management systems with OLTP workload
University of Skövde, School of Informatics.
2018 (English)Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesisAlternative title
Bedömining Av Mitigering Mot Spectre och Meltdown : Prestandamätningar av databashanteringssystem efter mitigering mot Spectre och Meltdown med OLTP arbetsbelastning (Swedish)
Abstract [en]

With Spectre and Meltdown out in the public, a rushed effort was made to patch these vulnerabilities by operating system vendors. However, with the mitigations against said vulnerabilities there will be some form of performance impact. This study aims to find out how much of an impact the software mitigations against Spectre and Meltdown have on database management systems during an online transaction processing workload.

An experiment was carried out to evaluate two popular open-source database management systems and see how they were affected before and after the software mitigations against Spectre and Meltdown was applied.

The study found that there is an average of 4-5% impact on the performance when the software mitigations is applied. The study also compared the two database management systems with each other and found that PostgreSQL can have a reduced performance of about 27% when both a hypervisor and the operating system is patched against Spectre and Meltdown.

Abstract [sv]

När Spectre och Meltdown tillkännagavs gjordes en snabb insats för att korrigera dessa sårbarheter av operativsystemleverantörer. Men med mildringarna mot dessa sårbarheter kommer det att finnas någon form av prestationspåverkan. Denna studie syftar till att ta reda på hur mycket av en påverkan uppdateringarna mot Spectre och Meltdown har på databashanteringssystem under en online-transaktionsbehandlings arbetsbelastning.

Ett experiment gjordes för att utvärdera två populära databashanteringssystem baserad på fri mjukvara och se hur de påverkades före och efter att uppdateringarna mot Spectre och Meltdown applicerats i en Linux maskin.

Studien fann att det i genomsnitt är 4–5% påverkan på prestandan när uppdateringarna tillämpas. Studien jämförde också de två databashanteringssystemen med varandra och fann att PostgreSQL kan ha en reducerad prestanda på cirka 27% när både det virtuella maskinhanteringssystemet och operativsystemet är uppdaterad mot Spectre och Meltdown.

Place, publisher, year, edition, pages
2018.
Keywords [en]
Spectre, Meltdown, Database, Database Management Systems, MariaDB, PostgreSQL, OLTP, Transactions Per Minute, Performance
Keywords [sv]
Spectre, Meltdown, Databas, Databashanteringssystem, MariaDB, PostgreSQL, OLTP, Transaktioner per minut, Prestanda
National Category
Computer and Information Sciences
Identifiers
URN: urn:nbn:se:his:diva-15254OAI: oai:DiVA.org:his-15254DiVA, id: diva2:1212643
Educational program
Network and Systems Administration
Supervisors
Examiners
Available from: 2018-06-03 Created: 2018-06-03 Last updated: 2018-06-03Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
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  • Other locale
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Output format
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