Messages in this thread Patch in this message | | | Date | Tue, 17 Aug 2021 18:52:52 +0000 | Subject | [PATCH v2] tracing/gpu: Add imported size to gpu_mem_imported tracepoint | From | Kalesh Singh <> |
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The existing gpu_mem_total tracepoint provides GPU drivers a uniform way to report the per-process and system-wide GPU memory usage. This tracepoint reports a single total of the GPU private allocations and the imported memory. [1]
To allow distinguishing GPU private vs imported memory, add an imported_size field to the gpu_mem_total tracepoint. GPU drivers can use this new field to report the per-process and global GPU-imported memory in a uniform way.
User space tools can detect and handle the old vs new gpu_mem_total format via the gpu_mem/gpu_mem_total/format file.
[1] https://lore.kernel.org/r/20200302234840.57188-1-zzyiwei@google.com/
Signed-off-by: Kalesh Singh <kaleshsingh@google.com> --- Changes in v2: - Add imported_size field to track imported memory instead of a separate tracepoint, per Ørjan
v1 of this patch can be found at: https://lore.kernel.org/r/20210726164135.1745059-1-kaleshsingh@google.com/
include/trace/events/gpu_mem.h | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/include/trace/events/gpu_mem.h b/include/trace/events/gpu_mem.h index 26d871f96e94..ae6fab6bab7b 100644 --- a/include/trace/events/gpu_mem.h +++ b/include/trace/events/gpu_mem.h @@ -15,7 +15,7 @@ /* * The gpu_memory_total event indicates that there's an update to either the - * global or process total gpu memory counters. + * global or process total and imported gpu memory counters. * * This event should be emitted whenever the kernel device driver allocates, * frees, imports, unimports memory in the GPU addressable space. @@ -24,31 +24,36 @@ * * @pid: Put 0 for global total, while positive pid for process total. * - * @size: Size of the allocation in bytes. + * @size: Total size of allocated and imported memory in bytes. + * + * @imported_size: Total size of imported memory in bytes. * */ TRACE_EVENT(gpu_mem_total, - TP_PROTO(uint32_t gpu_id, uint32_t pid, uint64_t size), + TP_PROTO(uint32_t gpu_id, uint32_t pid, uint64_t size, uint64_t imported_size), - TP_ARGS(gpu_id, pid, size), + TP_ARGS(gpu_id, pid, size, imported_size), TP_STRUCT__entry( __field(uint32_t, gpu_id) __field(uint32_t, pid) __field(uint64_t, size) + __field(uint64_t, imported_size) ), TP_fast_assign( __entry->gpu_id = gpu_id; __entry->pid = pid; __entry->size = size; + __entry->imported_size = imported_size; ), - TP_printk("gpu_id=%u pid=%u size=%llu", + TP_printk("gpu_id=%u pid=%u size=%llu imported_size=%llu", __entry->gpu_id, __entry->pid, - __entry->size) + __entry->size, + __entry->imported_size) ); #endif /* _TRACE_GPU_MEM_H */ base-commit: a2824f19e6065a0d3735acd9fe7155b104e7edf5 -- 2.33.0.rc1.237.g0d66db33f3-goog
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