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4645f06334
To check the range that compaction is working, tracepoint print start/end pfn of zone and start pfn of both scanner with decimal format. Since we manage all pages in order of 2 and it is well represented by hexadecimal, this patch change the tracepoint format from decimal to hexadecimal. This would improve readability. For example, it makes us easily notice whether current scanner try to compact previously attempted pageblock or not. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Mel Gorman <mgorman@suse.de> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
134 lines
2.9 KiB
C
134 lines
2.9 KiB
C
#undef TRACE_SYSTEM
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#define TRACE_SYSTEM compaction
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#if !defined(_TRACE_COMPACTION_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_COMPACTION_H
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#include <linux/types.h>
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#include <linux/list.h>
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#include <linux/tracepoint.h>
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#include <trace/events/gfpflags.h>
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DECLARE_EVENT_CLASS(mm_compaction_isolate_template,
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TP_PROTO(unsigned long nr_scanned,
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unsigned long nr_taken),
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TP_ARGS(nr_scanned, nr_taken),
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TP_STRUCT__entry(
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__field(unsigned long, nr_scanned)
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__field(unsigned long, nr_taken)
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),
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TP_fast_assign(
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__entry->nr_scanned = nr_scanned;
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__entry->nr_taken = nr_taken;
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),
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TP_printk("nr_scanned=%lu nr_taken=%lu",
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__entry->nr_scanned,
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__entry->nr_taken)
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);
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DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_migratepages,
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TP_PROTO(unsigned long nr_scanned,
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unsigned long nr_taken),
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TP_ARGS(nr_scanned, nr_taken)
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);
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DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_freepages,
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TP_PROTO(unsigned long nr_scanned,
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unsigned long nr_taken),
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TP_ARGS(nr_scanned, nr_taken)
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);
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TRACE_EVENT(mm_compaction_migratepages,
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TP_PROTO(unsigned long nr_all,
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int migrate_rc,
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struct list_head *migratepages),
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TP_ARGS(nr_all, migrate_rc, migratepages),
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TP_STRUCT__entry(
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__field(unsigned long, nr_migrated)
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__field(unsigned long, nr_failed)
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),
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TP_fast_assign(
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unsigned long nr_failed = 0;
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struct list_head *page_lru;
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/*
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* migrate_pages() returns either a non-negative number
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* with the number of pages that failed migration, or an
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* error code, in which case we need to count the remaining
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* pages manually
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*/
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if (migrate_rc >= 0)
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nr_failed = migrate_rc;
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else
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list_for_each(page_lru, migratepages)
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nr_failed++;
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__entry->nr_migrated = nr_all - nr_failed;
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__entry->nr_failed = nr_failed;
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),
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TP_printk("nr_migrated=%lu nr_failed=%lu",
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__entry->nr_migrated,
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__entry->nr_failed)
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);
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TRACE_EVENT(mm_compaction_begin,
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TP_PROTO(unsigned long zone_start, unsigned long migrate_start,
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unsigned long free_start, unsigned long zone_end),
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TP_ARGS(zone_start, migrate_start, free_start, zone_end),
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TP_STRUCT__entry(
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__field(unsigned long, zone_start)
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__field(unsigned long, migrate_start)
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__field(unsigned long, free_start)
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__field(unsigned long, zone_end)
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),
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TP_fast_assign(
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__entry->zone_start = zone_start;
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__entry->migrate_start = migrate_start;
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__entry->free_start = free_start;
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__entry->zone_end = zone_end;
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),
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TP_printk("zone_start=0x%lx migrate_start=0x%lx free_start=0x%lx zone_end=0x%lx",
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__entry->zone_start,
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__entry->migrate_start,
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__entry->free_start,
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__entry->zone_end)
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);
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TRACE_EVENT(mm_compaction_end,
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TP_PROTO(int status),
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TP_ARGS(status),
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TP_STRUCT__entry(
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__field(int, status)
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),
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TP_fast_assign(
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__entry->status = status;
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),
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TP_printk("status=%d", __entry->status)
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);
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#endif /* _TRACE_COMPACTION_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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