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82 lines
2.1 KiB
ReStructuredText
82 lines
2.1 KiB
ReStructuredText
.. meta::
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:description: ROCm Compute Profiler - RDNA3.5 GCEA and DRAM interface metrics (gfx115x)
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:keywords: ROCm Compute Profiler, RDNA, gfx115x, GCEA, DRAM
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.. _rdna-gcea:
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=========================================
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Graphics Core Efficiency Arbiter (GCEA)
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=========================================
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Graphics Core Efficiency Arbiter (GCEA) names the stage where traffic leaves the on-chip cache hierarchy towards the DRAM, covering memory-channel interfaces, the system arbiter (SARB), and return paths.
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Use these panels when analyzing bandwidth limits or memory-controller behavior after GL2.
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The sections below list RDNA3.5 (gfx115x) GCEA / DRAM interface metric descriptions.
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For on-chip GL2 cache tables, see :doc:`gl2-cache`.
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.. note::
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Panel YAMLs label DRAM read/write, SARB, and return-interface metrics together under this memory hierarchy stage.
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DRAM read interface
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-------------------
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.. tab-set::
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.. tab-item:: RDNA3.5 (gfx115x)
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:selected:
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.. jinja:: rdna115x-dram-read-interface-gfx115x
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:file: _templates/metrics_table.j2
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DRAM write interface
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--------------------
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.. tab-set::
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.. tab-item:: RDNA3.5 (gfx115x)
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:selected:
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.. jinja:: rdna115x-dram-write-interface-gfx115x
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:file: _templates/metrics_table.j2
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System arbiter (SARB)
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---------------------
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.. tab-set::
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.. tab-item:: RDNA3.5 (gfx115x)
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:selected:
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.. jinja:: rdna115x-system-arbiter-sarb-gfx115x
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:file: _templates/metrics_table.j2
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Return interface
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----------------
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.. tab-set::
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.. tab-item:: RDNA3.5 (gfx115x)
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:selected:
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.. jinja:: rdna115x-return-interface-gfx115x
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:file: _templates/metrics_table.j2
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Memory chart: GCEA to system memory
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===================================
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The following memory chart table aligns with the on-screen flow from GCEA out
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to the system memory.
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Memory chart - GCEA to system memory
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------------------------------------
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.. tab-set::
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.. tab-item:: RDNA3.5 (gfx115x)
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:selected:
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.. jinja:: rdna115x-memory-chart-gcea-to-system-memory-gfx115x
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:file: _templates/metrics_table.j2
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