go.mod: bump Pebble to afb4d6001bab and update compression metrics

We change the compression metrics from showing sstable counts to
showing compressed bytes and compression ratios.

Changes:

 * [`afb4d600`](cockroachdb/pebble@afb4d600) block: minor change to CompressionRatio()
 * [`d57c0ace`](cockroachdb/pebble@d57c0ace) metrics: move Compression to Table
 * [`750fe8c3`](cockroachdb/pebble@750fe8c3) compression: improve compression stats string
 * [`335af5d4`](cockroachdb/pebble@335af5d4) sstable: free physical buffers on write
 * [`1520f913`](cockroachdb/pebble@1520f913) db: track duration, bytes read for block reads in TableIngestInfo
 * [`503a214b`](cockroachdb/pebble@503a214b) db: track memtable flush, manifest update durations in TableIngestInfo
 * [`c1d36869`](cockroachdb/pebble@c1d36869) metrics: expose new compression stats

Release note: none.
Epic: none.

Author: RaduBerinde

DEPS.bzl

@@ -1835,10 +1835,10 @@ def go_deps():
         patches = [
             "@com_github_cockroachdb_cockroach//build/patches:com_github_cockroachdb_pebble.patch",
         ],
-        sha256 = "b192a1d1000426cf0fe9ceae5909ef19960d2bb14694459286565acdd8d6be89",
-        strip_prefix = "github.com/cockroachdb/[email protected]20250730225220-70fa14f4ca3d",
+        sha256 = "e6a74cd60e0d641da8d9a9091efc369f0895b1d18e4dc67cc2a5ee06cde6999b",
+        strip_prefix = "github.com/cockroachdb/[email protected]20250804212405-afb4d6001bab",
         urls = [
-            "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/pebble/com_github_cockroachdb_pebble-v0.0.0-20250730225220-70fa14f4ca3d.zip",
+            "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/pebble/com_github_cockroachdb_pebble-v0.0.0-20250804212405-afb4d6001bab.zip",
         ],
     )
     go_repository(

build/bazelutil/distdir_files.bzl

@@ -358,7 +358,7 @@ DISTDIR_FILES = {
     "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/gostdlib/com_github_cockroachdb_gostdlib-v1.19.0.zip": "c4d516bcfe8c07b6fc09b8a9a07a95065b36c2855627cb3514e40c98f872b69e",
     "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/logtags/com_github_cockroachdb_logtags-v0.0.0-20241215232642-bb51bb14a506.zip": "920068af09e3846d9ebb4e4a7787ff1dd10f3989c5f940ad861b0f6a9f824f6e",
     "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/metamorphic/com_github_cockroachdb_metamorphic-v0.0.0-20231108215700-4ba948b56895.zip": "28c8cf42192951b69378cf537be5a9a43f2aeb35542908cc4fe5f689505853ea",
-    "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/pebble/com_github_cockroachdb_pebble-v0.0.0-20250730225220-70fa14f4ca3d.zip": "b192a1d1000426cf0fe9ceae5909ef19960d2bb14694459286565acdd8d6be89",
+    "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/pebble/com_github_cockroachdb_pebble-v0.0.0-20250804212405-afb4d6001bab.zip": "e6a74cd60e0d641da8d9a9091efc369f0895b1d18e4dc67cc2a5ee06cde6999b",
     "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/redact/com_github_cockroachdb_redact-v1.1.6.zip": "018eccb5fb9ca52d43ec9eaf213539d01c1f2b94e0e822406ebfb2e9321ef6cf",
     "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/returncheck/com_github_cockroachdb_returncheck-v0.0.0-20200612231554-92cdbca611dd.zip": "ce92ba4352deec995b1f2eecf16eba7f5d51f5aa245a1c362dfe24c83d31f82b",
     "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/stress/com_github_cockroachdb_stress-v0.0.0-20220803192808-1806698b1b7b.zip": "3fda531795c600daf25532a4f98be2a1335cd1e5e182c72789bca79f5f69fcc1",

docs/generated/metrics/metrics.yaml

@@ -15654,7 +15654,7 @@ layers:
       description: Number of disk reads per query
       y_axis_label: Disk Reads per Query
       type: GAUGE
-      unit: COUNT
+      unit: CONST
       aggregation: AVG
       derivative: NONE
     - name: rocksdb.table-readers-mem-estimate
@@ -16274,6 +16274,78 @@ layers:
       unit: COUNT
       aggregation: AVG
       derivative: NON_NEGATIVE_DERIVATIVE
+    - name: storage.compression.cr
+      exported_name: storage_compression_cr
+      description: Average compression ratio of sstable and blob value data.
+      y_axis_label: Ratio
+      type: GAUGE
+      unit: CONST
+      aggregation: AVG
+      derivative: NONE
+    - name: storage.compression.minlz.bytes
+      exported_name: storage_compression_minlz_bytes
+      description: Total on disk size of sstable and blob value data that is compressed with the MinLZ algorithm.
+      y_axis_label: Bytes
+      type: GAUGE
+      unit: CONST
+      aggregation: AVG
+      derivative: NONE
+    - name: storage.compression.minlz.cr
+      exported_name: storage_compression_minlz_cr
+      description: Average compression ratio of sstable and blob value data that is compressed with the MinLZ algorithm.
+      y_axis_label: Ratio
+      type: GAUGE
+      unit: CONST
+      aggregation: AVG
+      derivative: NONE
+    - name: storage.compression.none.bytes
+      exported_name: storage_compression_none_bytes
+      description: Total on disk size of sstable and blob value data that is not compressed.
+      y_axis_label: Bytes
+      type: GAUGE
+      unit: BYTES
+      aggregation: AVG
+      derivative: NONE
+    - name: storage.compression.snappy.bytes
+      exported_name: storage_compression_snappy_bytes
+      description: Total on disk size of sstable and blob value data that is compressed with the Snappy algorithm.
+      y_axis_label: Bytes
+      type: GAUGE
+      unit: BYTES
+      aggregation: AVG
+      derivative: NONE
+    - name: storage.compression.snappy.cr
+      exported_name: storage_compression_snappy_cr
+      description: Average compression ratio of sstable and blob value data that is compressed with the snappy algorithm.
+      y_axis_label: Ratio
+      type: GAUGE
+      unit: CONST
+      aggregation: AVG
+      derivative: NONE
+    - name: storage.compression.unknown.bytes
+      exported_name: storage_compression_unknown_bytes
+      description: Total on disk size of sstable and blob value data that is compressed but for which we have no compression statistics.
+      y_axis_label: Bytes
+      type: GAUGE
+      unit: BYTES
+      aggregation: AVG
+      derivative: NONE
+    - name: storage.compression.zstd.bytes
+      exported_name: storage_compression_zstd_bytes
+      description: Total on disk size of sstable and blob value data that is compressed with the Zstd algorithm.
+      y_axis_label: Bytes
+      type: GAUGE
+      unit: BYTES
+      aggregation: AVG
+      derivative: NONE
+    - name: storage.compression.zstd.cr
+      exported_name: storage_compression_zstd_cr
+      description: Average compression ratio of sstable and blob value data that is compressed with the Zstd algorithm.
+      y_axis_label: Ratio
+      type: GAUGE
+      unit: CONST
+      aggregation: AVG
+      derivative: NONE
     - name: storage.disk-slow
       exported_name: storage_disk_slow
       description: Number of instances of disk operations taking longer than 10s
@@ -16885,7 +16957,7 @@ layers:
       description: Compaction score of level 0
       y_axis_label: Score
       type: GAUGE
-      unit: COUNT
+      unit: CONST
       aggregation: AVG
       derivative: NONE
     - name: storage.l0-level-size
@@ -16925,7 +16997,7 @@ layers:
       description: Compaction score of level 1
       y_axis_label: Score
       type: GAUGE
-      unit: COUNT
+      unit: CONST
       aggregation: AVG
       derivative: NONE
     - name: storage.l1-level-size
@@ -16949,7 +17021,7 @@ layers:
       description: Compaction score of level 2
       y_axis_label: Score
       type: GAUGE
-      unit: COUNT
+      unit: CONST
       aggregation: AVG
       derivative: NONE
     - name: storage.l2-level-size
@@ -16973,7 +17045,7 @@ layers:
       description: Compaction score of level 3
       y_axis_label: Score
       type: GAUGE
-      unit: COUNT
+      unit: CONST
       aggregation: AVG
       derivative: NONE
     - name: storage.l3-level-size
@@ -16997,7 +17069,7 @@ layers:
       description: Compaction score of level 4
       y_axis_label: Score
       type: GAUGE
-      unit: COUNT
+      unit: CONST
       aggregation: AVG
       derivative: NONE
     - name: storage.l4-level-size
@@ -17021,7 +17093,7 @@ layers:
       description: Compaction score of level 5
       y_axis_label: Score
       type: GAUGE
-      unit: COUNT
+      unit: CONST
       aggregation: AVG
       derivative: NONE
     - name: storage.l5-level-size
@@ -17045,7 +17117,7 @@ layers:
       description: Compaction score of level 6
       y_axis_label: Score
       type: GAUGE
-      unit: COUNT
+      unit: CONST
       aggregation: AVG
       derivative: NONE
     - name: storage.l6-level-size
@@ -17200,38 +17272,6 @@ layers:
       unit: COUNT
       aggregation: AVG
       derivative: NON_NEGATIVE_DERIVATIVE
-    - name: storage.sstable.compression.none.count
-      exported_name: storage_sstable_compression_none_count
-      description: Count of SSTables that are uncompressed.
-      y_axis_label: SSTables
-      type: GAUGE
-      unit: COUNT
-      aggregation: AVG
-      derivative: NONE
-    - name: storage.sstable.compression.snappy.count
-      exported_name: storage_sstable_compression_snappy_count
-      description: Count of SSTables that have been compressed with the snappy compression algorithm.
-      y_axis_label: SSTables
-      type: GAUGE
-      unit: COUNT
-      aggregation: AVG
-      derivative: NONE
-    - name: storage.sstable.compression.unknown.count
-      exported_name: storage_sstable_compression_unknown_count
-      description: Count of SSTables that have an unknown compression algorithm.
-      y_axis_label: SSTables
-      type: GAUGE
-      unit: COUNT
-      aggregation: AVG
-      derivative: NONE
-    - name: storage.sstable.compression.zstd.count
-      exported_name: storage_sstable_compression_zstd_count
-      description: Count of SSTables that have been compressed with the zstd compression algorithm.
-      y_axis_label: SSTables
-      type: GAUGE
-      unit: COUNT
-      aggregation: AVG
-      derivative: NONE
     - name: storage.sstable.remote.bytes
       exported_name: storage_sstable_remote_bytes
       description: Bytes in SSTables that are stored off-disk (remotely) in object storage.

go.mod

@@ -135,7 +135,7 @@ require (
 	github.com/cockroachdb/errors v1.12.0
 	github.com/cockroachdb/gostdlib v1.19.0
 	github.com/cockroachdb/logtags v0.0.0-20241215232642-bb51bb14a506
-	github.com/cockroachdb/pebble v0.0.0-20250730225220-70fa14f4ca3d
+	github.com/cockroachdb/pebble v0.0.0-20250804212405-afb4d6001bab
 	github.com/cockroachdb/redact v1.1.6
 	github.com/cockroachdb/returncheck v0.0.0-20200612231554-92cdbca611dd
 	github.com/cockroachdb/tokenbucket v0.0.0-20250429170803-42689b6311bb

go.sum

@@ -581,8 +581,8 @@ github.com/cockroachdb/logtags v0.0.0-20241215232642-bb51bb14a506 h1:ASDL+UJcILM
 github.com/cockroachdb/logtags v0.0.0-20241215232642-bb51bb14a506/go.mod h1:Mw7HqKr2kdtu6aYGn3tPmAftiP3QPX63LdK/zcariIo=
 github.com/cockroachdb/metamorphic v0.0.0-20231108215700-4ba948b56895 h1:XANOgPYtvELQ/h4IrmPAohXqe2pWA8Bwhejr3VQoZsA=
 github.com/cockroachdb/metamorphic v0.0.0-20231108215700-4ba948b56895/go.mod h1:aPd7gM9ov9M8v32Yy5NJrDyOcD8z642dqs+F0CeNXfA=
-github.com/cockroachdb/pebble v0.0.0-20250730225220-70fa14f4ca3d h1:Bl4ThksXKTkwTF/30czJt6uVDl95qMgZDqrO2Cz887c=
-github.com/cockroachdb/pebble v0.0.0-20250730225220-70fa14f4ca3d/go.mod h1:m1E2qCthmjzpvzktMEjYXj0eykYI325brUhFJU6VRis=
+github.com/cockroachdb/pebble v0.0.0-20250804212405-afb4d6001bab h1:XGO/UWIv5lB3r5kUv1MoF49Nofz0Ro74Vtt+p2whIX0=
+github.com/cockroachdb/pebble v0.0.0-20250804212405-afb4d6001bab/go.mod h1:m1E2qCthmjzpvzktMEjYXj0eykYI325brUhFJU6VRis=
 github.com/cockroachdb/redact v1.1.3/go.mod h1:BVNblN9mBWFyMyqK1k3AAiSxhvhfK2oOZZ2lK+dpvRg=
 github.com/cockroachdb/redact v1.1.6 h1:zXJBwDZ84xJNlHl1rMyCojqyIxv+7YUpQiJLQ7n4314=
 github.com/cockroachdb/redact v1.1.6/go.mod h1:BVNblN9mBWFyMyqK1k3AAiSxhvhfK2oOZZ2lK+dpvRg=

pkg/kv/kvserver/kvstorage/snaprecv/testdata/echotest/TestMultiSSTWriterInitSST_interesting=false

@@ -3,7 +3,7 @@
 echo
 ----
 >> finishing msstw
->> sstSize=4816 estDataSize=126
+>> sstSize=4752 estDataSize=126
 >> sst0:
 rangedel: /Local/RangeID/100/{r""-s""}
 rangekeydel: /Local/RangeID/100/{r""-s""}

pkg/kv/kvserver/kvstorage/snaprecv/testdata/echotest/TestMultiSSTWriterInitSST_interesting=true

@@ -5,11 +5,11 @@ echo
 >> rangekeyset [/Local/RangeID/100/r/AbortSpan/"00000000-0000-0000-0000-000000000000"-/Local/RangeID/100/r/AbortSpan/"6ba7b810-9dad-11d1-80b4-00c04fd430c8")
 >> sstSize=0 estDataSize=94
 >> rangekeyset [/Local/Range"d"/RangeDescriptor-/Local/Range"f"/RangeDescriptor)
->> sstSize=1167 estDataSize=403
+>> sstSize=1154 estDataSize=403
 >> rangekeyset ["e"-"f")
->> sstSize=4296 estDataSize=581
+>> sstSize=4244 estDataSize=581
 >> finishing msstw
->> sstSize=5287 estDataSize=585
+>> sstSize=5222 estDataSize=585
 >> sst0:
 rangedel: /Local/RangeID/100/r{""-/AbortSpan/"00000000-0000-0000-0000-000000000000"}
 rangedel: /Local/RangeID/100/r/AbortSpan/"{00000000-0000-0000-0000-000000000000"-6ba7b810-9dad-11d1-80b4-00c04fd430c8"}