[v23.3.x] cpu_profiler: prealloc result buffers #20826
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Preallocated result buffers at startup to avoid oversized allocs later down the line. (cherry picked from commit 01bd464)
Avoids serializing everything to a single giant string (and hence causing oversized allocs). Note this still serializes the internal vector to a single string but I am working on a fix for that in seastar. (cherry picked from commit 69b215d)
travisdowns
approved these changes
Jul 10, 2024
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Backport of PR #18736