Performance numbers for the upcoming intel hardware bug workaround (page-table-isolation): https://www.postgresql.org/message-id/20180102222354.qikjmf7dvnjgbkxe@alap3.anarazel.de …
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16 clients: readonly tpch-like: pti=off: tps = 236629.778328 pti=on: tps = 220791.228297 (~0.93x) pti=on, nopcid: tps = 198959.801459 (~0.84x) pgbench SELECT 1: pti=off: tps = 420490.162391 pti=on: tps = 350746.065039 (~0.83x) pti=on, nopcid: tps = 324269.903152 (~0.77x)
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Replying to @AndresFreundTec
VT-D enabled and NVMe SSD and Multiqueue NIC and on 16 different virtual machines?
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Replying to @pers0naluni0n
VT-D disabled, connection via local unix domain sockets, memory only. It's just that syscalls become a lot more expensive with PTI enabled :(
9:56 AM - 3 Jan 2018
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