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https://issues.apache.org/jira/browse/TS-4719?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Leif Hedstrom updated TS-4719:
------------------------------
Description:
We should properly interleave AIO threads (disk threads) evenly across the NUMA
nodes, and have affinity on those nodes. That would allow for better memory
distribution across NUMA nodes. We've noticed pretty uneven allocations on some
boxes, which I attribute to this problem (but no strong evidence, but it does
make sense).
{code}
Per-node process memory usage (in MBs) for PID 33471 ([ET_NET 0])
Node 0 Node 1 Total
--------------- --------------- ---------------
Huge 0.00 0.00 0.00
Heap 0.00 0.00 0.00
Stack 1.38 0.64 2.02
Private 188993.75 59142.80 248136.55
---------------- --------------- --------------- ---------------
Total 188995.13 59143.44 248138.57
{code}
was:
We should properly interleave AIO threads (disk threads) evenly across the NUMA
nodes, and have affinity on those nodes. That would allow for better memory
distribution across NUMA nodes. I've noticed pretty uneven allocations on some
boxes, which I attribute to this problem (but no strong evidence, but it does
make sense).
{code}
Per-node process memory usage (in MBs) for PID 33471 ([ET_NET 0])
Node 0 Node 1 Total
--------------- --------------- ---------------
Huge 0.00 0.00 0.00
Heap 0.00 0.00 0.00
Stack 1.38 0.64 2.02
Private 188993.75 59142.80 248136.55
---------------- --------------- --------------- ---------------
Total 188995.13 59143.44 248138.57
{code}
> Should have NUMA affinity for disk threads (AIO threads)
> --------------------------------------------------------
>
> Key: TS-4719
> URL: https://issues.apache.org/jira/browse/TS-4719
> Project: Traffic Server
> Issue Type: Improvement
> Components: Cache, Core
> Reporter: Leif Hedstrom
> Fix For: 7.0.0
>
>
> We should properly interleave AIO threads (disk threads) evenly across the
> NUMA nodes, and have affinity on those nodes. That would allow for better
> memory distribution across NUMA nodes. We've noticed pretty uneven
> allocations on some boxes, which I attribute to this problem (but no strong
> evidence, but it does make sense).
> {code}
> Per-node process memory usage (in MBs) for PID 33471 ([ET_NET 0])
> Node 0 Node 1 Total
> --------------- --------------- ---------------
> Huge 0.00 0.00 0.00
> Heap 0.00 0.00 0.00
> Stack 1.38 0.64 2.02
> Private 188993.75 59142.80 248136.55
> ---------------- --------------- --------------- ---------------
> Total 188995.13 59143.44 248138.57
> {code}
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