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The mm_migrate_pages trace event reports a reason for the migration, typically as a symbolic string. The exception is the reason MR_NUMA_MISPLACED for which it just displays the numeric value: mm_migrate_pages: nr_succeeded=1 nr_failed=0 mode=MIGRATE_ASYNC reason=0x5 This patch makes the output consistent by introducing a string value for MR_NUMA_MISPLACED. The event is then reported as: mm_migrate_pages: nr_succeeded=1 nr_failed=0 mode=MIGRATE_ASYNC reason=numa_misplaced Signed-off-by: Max Asbock <masbock@linux.vnet.ibm.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@redhat.com> Acked-by: Mel Gorman <mgorman@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
#undef TRACE_SYSTEM
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#define TRACE_SYSTEM migrate
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#if !defined(_TRACE_MIGRATE_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_MIGRATE_H
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#include <linux/tracepoint.h>
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#define MIGRATE_MODE \
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{MIGRATE_ASYNC, "MIGRATE_ASYNC"}, \
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{MIGRATE_SYNC_LIGHT, "MIGRATE_SYNC_LIGHT"}, \
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{MIGRATE_SYNC, "MIGRATE_SYNC"}
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#define MIGRATE_REASON \
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{MR_COMPACTION, "compaction"}, \
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{MR_MEMORY_FAILURE, "memory_failure"}, \
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{MR_MEMORY_HOTPLUG, "memory_hotplug"}, \
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{MR_SYSCALL, "syscall_or_cpuset"}, \
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{MR_MEMPOLICY_MBIND, "mempolicy_mbind"}, \
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{MR_NUMA_MISPLACED, "numa_misplaced"}, \
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{MR_CMA, "cma"}
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TRACE_EVENT(mm_migrate_pages,
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TP_PROTO(unsigned long succeeded, unsigned long failed,
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enum migrate_mode mode, int reason),
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TP_ARGS(succeeded, failed, mode, reason),
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TP_STRUCT__entry(
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__field( unsigned long, succeeded)
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__field( unsigned long, failed)
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__field( enum migrate_mode, mode)
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__field( int, reason)
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),
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TP_fast_assign(
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__entry->succeeded = succeeded;
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__entry->failed = failed;
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__entry->mode = mode;
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__entry->reason = reason;
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),
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TP_printk("nr_succeeded=%lu nr_failed=%lu mode=%s reason=%s",
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__entry->succeeded,
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__entry->failed,
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__print_symbolic(__entry->mode, MIGRATE_MODE),
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__print_symbolic(__entry->reason, MIGRATE_REASON))
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);
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TRACE_EVENT(mm_numa_migrate_ratelimit,
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TP_PROTO(struct task_struct *p, int dst_nid, unsigned long nr_pages),
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TP_ARGS(p, dst_nid, nr_pages),
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TP_STRUCT__entry(
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__array( char, comm, TASK_COMM_LEN)
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__field( pid_t, pid)
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__field( int, dst_nid)
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__field( unsigned long, nr_pages)
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),
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TP_fast_assign(
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memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
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__entry->pid = p->pid;
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__entry->dst_nid = dst_nid;
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__entry->nr_pages = nr_pages;
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),
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TP_printk("comm=%s pid=%d dst_nid=%d nr_pages=%lu",
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__entry->comm,
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__entry->pid,
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__entry->dst_nid,
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__entry->nr_pages)
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);
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#endif /* _TRACE_MIGRATE_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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