[DRAFT/DO NOT MERGE] Disk throughput probe: old pool vs NVMe pool - #179
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[DRAFT/DO NOT MERGE] Disk throughput probe: old pool vs NVMe pool#179David Engel (David-Engel) wants to merge 5 commits into
David Engel (David-Engel) wants to merge 5 commits into
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…pool) Temporary diagnostic to explain the slower Windows build on the NVMe pool. Replaces the validation stages with 4 short jobs (Windows old/new, Linux old/new) that run cache-bypass disk benchmarks where the agent work folder lives (diskspd -Sh on Windows, fio --direct=1 on Linux) and report sequential + random MB/s and IOPS. Original entry point preserved as comments. DO NOT MERGE.
- Windows: run diskspd with ErrorActionPreference=Continue so its stderr warnings don't abort the job; use single-thread sequential to avoid the non-sequential warning. Publish a per-job markdown summary (uploadsummary). - Linux: accumulate results and publish the same per-job markdown summary.
…armth Adds agent diagnostics to both disk-probe scripts to test the two remaining hypotheses for the slower Windows build on NVMe: CPU/SKU difference and cold cargo/registry caches on the fresh ephemeral image.
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Purpose (temporary diagnostic)
Investigating why the Windows build got ~slower on the new NVMe 1ES pool while Linux got faster. This PR temporarily hijacks
.pipeline/validation-pipeline.ymlto run 4 short jobs that measure raw disk throughput where the agent work folder lives, comparing the old and new pools head-to-head.Jobs
RUST-1ES-POOL-WUS3RUST-Win22-Sql25-1PRUST-1ES-POOL-WUS3-NVMERUST-Win22-Sql25-1P-NVMERUST-1ES-POOL-WUS3RUST-1ES-UBUSLIMRUST-1ES-POOL-WUS3-NVMERUST-1ES-UBUSLIM-NVMEMethod
diskspdwith-Sh(software + hardware cache bypass).fio --direct=1(O_DIRECT, bypasses page cache).RESULT|<label>|<scenario>|<MB/s>|<IOPS>line for easy comparison.Notes
validation-pipeline.ymlis hijacked; the original entry point is preserved as comments and must be restored before this branch could ever merge.*Oldjobs will fail to find agents.