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bh=UWc4hSQmzBB7vyJUeLm8dd7XRJRw3sM/5DoLuwgjqS4=; b=JMa9CdcUPX2RFF1cF/2JRSZPok2Tigw9ItwWnlutBZE+LhC1DKQE/eHN47193+HVs2+2Yq ZWVzAz/EhOuHPS9t/va6E7fy9H2nT0oXD/j9vrZkM9Hq7cYib4pcL/h1e1Gqii3/PYUKga g3z86nf4ZG9W9KfboGo6SjlmigwEpvM= X-MC-Unique: CmQm6c5LPmaHD9IPEQ9tvQ-1 From: "Dr. David Alan Gilbert (git)" To: qemu-devel@nongnu.org, zhengchuan@huawei.com, dovmurik@linux.vnet.ibm.com, hgcoin@gmail.com, zhangjiachen.jaycee@bytedance.com, lvivier@redhat.com, peterx@redhat.com, stefanha@redhat.com, vgoyal@redhat.com, jinyan12@huawei.com, ann.zhuangyanying@huawei.com Subject: [PULL 14/26] migration/dirtyrate: Add trace_calls to make it easier to debug Date: Fri, 25 Sep 2020 13:06:43 +0100 Message-Id: <20200925120655.295142-15-dgilbert@redhat.com> In-Reply-To: <20200925120655.295142-1-dgilbert@redhat.com> References: <20200925120655.295142-1-dgilbert@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dgilbert@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" From: Chuan Zheng Add trace_calls to make it easier to debug Signed-off-by: Chuan Zheng Reviewed-by: Dr. David Alan Gilbert Reviewed-by: David Edmondson Message-Id: <1600237327-33618-13-git-send-email-zhengchuan@huawei.com> Signed-off-by: Dr. David Alan Gilbert --- migration/dirtyrate.c | 9 +++++++++ migration/trace-events | 8 ++++++++ 2 files changed, 17 insertions(+) diff --git a/migration/dirtyrate.c b/migration/dirtyrate.c index 2ffd88d48e..68577ef250 100644 --- a/migration/dirtyrate.c +++ b/migration/dirtyrate.c @@ -22,6 +22,7 @@ #include "qapi/qapi-commands-migration.h" #include "migration.h" #include "ram.h" +#include "trace.h" #include "dirtyrate.h" =20 static int CalculatingState =3D DIRTY_RATE_STATUS_UNSTARTED; @@ -54,6 +55,7 @@ static bool is_sample_period_valid(int64_t sec) static int dirtyrate_set_state(int *state, int old_state, int new_state) { assert(new_state < DIRTY_RATE_STATUS__MAX); + trace_dirtyrate_set_state(DirtyRateStatus_str(new_state)); if (qatomic_cmpxchg(state, old_state, new_state) =3D=3D old_state) { return 0; } else { @@ -76,6 +78,8 @@ static struct DirtyRateInfo *query_dirty_rate_info(void) info->start_time =3D DirtyStat.start_time; info->calc_time =3D DirtyStat.calc_time; =20 + trace_query_dirty_rate_info(DirtyRateStatus_str(CalculatingState)); + return info; } =20 @@ -123,6 +127,7 @@ static uint32_t get_ramblock_vfn_hash(struct RamblockDi= rtyInfo *info, crc =3D crc32(0, (info->ramblock_addr + vfn * TARGET_PAGE_SIZE), TARGET_PAGE_SIZE); =20 + trace_get_ramblock_vfn_hash(info->idstr, vfn, crc); return crc; } =20 @@ -201,6 +206,8 @@ static bool skip_sample_ramblock(RAMBlock *block) * Sample only blocks larger than MIN_RAMBLOCK_SIZE. */ if (qemu_ram_get_used_length(block) < (MIN_RAMBLOCK_SIZE << 10)) { + trace_skip_sample_ramblock(block->idstr, + qemu_ram_get_used_length(block)); return true; } =20 @@ -260,6 +267,7 @@ static void calc_page_dirty_rate(struct RamblockDirtyIn= fo *info) for (i =3D 0; i < info->sample_pages_count; i++) { crc =3D get_ramblock_vfn_hash(info, info->sample_page_vfn[i]); if (crc !=3D info->hash_result[i]) { + trace_calc_page_dirty_rate(info->idstr, crc, info->hash_result= [i]); info->sample_dirty_count++; } } @@ -285,6 +293,7 @@ find_block_matched(RAMBlock *block, int count, if (infos[i].ramblock_addr !=3D qemu_ram_get_host_addr(block) || infos[i].ramblock_pages !=3D (qemu_ram_get_used_length(block) >> TARGET_PAGE_BITS)) { + trace_find_page_matched(block->idstr); return NULL; } =20 diff --git a/migration/trace-events b/migration/trace-events index 7ba2fa6644..597a470b9d 100644 --- a/migration/trace-events +++ b/migration/trace-events @@ -313,3 +313,11 @@ dirty_bitmap_load_bits_zeroes(void) "" dirty_bitmap_load_header(uint32_t flags) "flags 0x%x" dirty_bitmap_load_enter(void) "" dirty_bitmap_load_success(void) "" + +# dirtyrate.c +dirtyrate_set_state(const char *new_state) "new state %s" +query_dirty_rate_info(const char *new_state) "current state %s" +get_ramblock_vfn_hash(const char *idstr, uint64_t vfn, uint32_t crc) "ramb= lock name: %s, vfn: %"PRIu64 ", crc: %" PRIu32 +calc_page_dirty_rate(const char *idstr, uint32_t new_crc, uint32_t old_crc= ) "ramblock name: %s, new crc: %" PRIu32 ", old crc: %" PRIu32 +skip_sample_ramblock(const char *idstr, uint64_t ramblock_size) "ramblock = name: %s, ramblock size: %" PRIu64 +find_page_matched(const char *idstr) "ramblock %s addr or size changed" --=20 2.26.2