Comments (3)
manishrjain
commented on May 23, 2024
The CPU profiling information shows us largely bound by garbage collector.
(pprof) top10
833.10s of 1318.68s total (63.18%)
Dropped 502 nodes (cum <= 6.59s)
Showing top 10 nodes out of 161 (cum >= 31.31s)
flat flat% sum% cum cum%
205.52s 15.59% 15.59% 205.52s 15.59% runtime._ExternalCode
195.53s 14.83% 30.41% 473.25s 35.89% runtime.scanobject
152.10s 11.53% 41.95% 152.10s 11.53% runtime.heapBitsForObject
110.72s 8.40% 50.34% 136.99s 10.39% runtime.greyobject
41.96s 3.18% 53.53% 280.16s 21.25% runtime.mallocgc
36.39s 2.76% 56.29% 82.55s 6.26% runtime.scang
25.93s 1.97% 58.25% 45.98s 3.49% runtime.readgstatus
24.62s 1.87% 60.12% 58.09s 4.41% runtime.mSpan_Sweep
21.77s 1.65% 61.77% 21.90s 1.66% runtime.heapBitsSetType
18.56s 1.41% 63.18% 31.31s 2.37% runtime.heapBitsSweepSpan
In Go1.6, the GC became faster. So, let's do all the testing on Go1.6, use that as a base for v0.2. I've created a GCE instance called dgraph2 with Go1.6 installed for this purpose.
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manishrjain
commented on May 23, 2024
Using Go1.6 for all the testing. Don't see a major shift in the above cpu profiling information, but haven't looked too deep either.
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manishrjain
commented on May 23, 2024
Done.
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