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4cc79b3303
This adds two trace events for base page and HugeTLB page migrations. These events, closely follow the implementation details like setting and removing of PTE migration entries, which are essential operations for migration. The new CREATE_TRACE_POINTS in <mm/rmap.c> covers both <events/migration.h> and <events/tlb.h> based trace events. Hence drop redundant CREATE_TRACE_POINTS from other places which could have otherwise conflicted during build. Link: https://lkml.kernel.org/r/1643368182-9588-3-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Reported-by: kernel test robot <lkp@intel.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Zi Yan <ziy@nvidia.com> Cc: Naoya Horiguchi <naoya.horiguchi@nec.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
142 lines
3.5 KiB
C
142 lines
3.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#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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EM( MIGRATE_ASYNC, "MIGRATE_ASYNC") \
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EM( MIGRATE_SYNC_LIGHT, "MIGRATE_SYNC_LIGHT") \
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EMe(MIGRATE_SYNC, "MIGRATE_SYNC")
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#define MIGRATE_REASON \
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EM( MR_COMPACTION, "compaction") \
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EM( MR_MEMORY_FAILURE, "memory_failure") \
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EM( MR_MEMORY_HOTPLUG, "memory_hotplug") \
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EM( MR_SYSCALL, "syscall_or_cpuset") \
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EM( MR_MEMPOLICY_MBIND, "mempolicy_mbind") \
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EM( MR_NUMA_MISPLACED, "numa_misplaced") \
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EM( MR_CONTIG_RANGE, "contig_range") \
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EM( MR_LONGTERM_PIN, "longterm_pin") \
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EMe(MR_DEMOTION, "demotion")
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/*
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* First define the enums in the above macros to be exported to userspace
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* via TRACE_DEFINE_ENUM().
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*/
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#undef EM
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#undef EMe
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#define EM(a, b) TRACE_DEFINE_ENUM(a);
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#define EMe(a, b) TRACE_DEFINE_ENUM(a);
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MIGRATE_MODE
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MIGRATE_REASON
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/*
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* Now redefine the EM() and EMe() macros to map the enums to the strings
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* that will be printed in the output.
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*/
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#undef EM
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#undef EMe
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#define EM(a, b) {a, b},
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#define EMe(a, b) {a, b}
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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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unsigned long thp_succeeded, unsigned long thp_failed,
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unsigned long thp_split, enum migrate_mode mode, int reason),
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TP_ARGS(succeeded, failed, thp_succeeded, thp_failed,
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thp_split, 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( unsigned long, thp_succeeded)
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__field( unsigned long, thp_failed)
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__field( unsigned long, thp_split)
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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->thp_succeeded = thp_succeeded;
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__entry->thp_failed = thp_failed;
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__entry->thp_split = thp_split;
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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 nr_thp_succeeded=%lu nr_thp_failed=%lu nr_thp_split=%lu mode=%s reason=%s",
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__entry->succeeded,
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__entry->failed,
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__entry->thp_succeeded,
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__entry->thp_failed,
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__entry->thp_split,
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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_migrate_pages_start,
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TP_PROTO(enum migrate_mode mode, int reason),
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TP_ARGS(mode, reason),
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TP_STRUCT__entry(
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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->mode = mode;
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__entry->reason = reason;
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),
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TP_printk("mode=%s reason=%s",
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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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DECLARE_EVENT_CLASS(migration_pte,
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TP_PROTO(unsigned long addr, unsigned long pte, int order),
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TP_ARGS(addr, pte, order),
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TP_STRUCT__entry(
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__field(unsigned long, addr)
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__field(unsigned long, pte)
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__field(int, order)
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),
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TP_fast_assign(
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__entry->addr = addr;
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__entry->pte = pte;
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__entry->order = order;
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),
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TP_printk("addr=%lx, pte=%lx order=%d", __entry->addr, __entry->pte, __entry->order)
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);
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DEFINE_EVENT(migration_pte, set_migration_pte,
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TP_PROTO(unsigned long addr, unsigned long pte, int order),
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TP_ARGS(addr, pte, order)
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);
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DEFINE_EVENT(migration_pte, remove_migration_pte,
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TP_PROTO(unsigned long addr, unsigned long pte, int order),
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TP_ARGS(addr, pte, order)
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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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