Add read-update-write benchmark

Update the README with a new benchmark group and performance results.
Include new data files and update the Rust benchmark implementation.
Regenerate UPB bindings and fix a data path in the C benchmark runner.

README.md

@@ -147,12 +147,13 @@ end offsets of the field range are recorded to bound iteration efficiently.
 Two benchmark suites share the same binary data files and the same four
 measurement groups:
 
-| Group           | What is timed                                           |
+| Group               | What is timed                                           |
-| --------------- | ------------------------------------------------------- |
+| ------------------- | ------------------------------------------------------- |
-| `shallow_parse` | Become ready to read any field (one scan / full decode) |
+| `shallow_parse`     | Become ready to read any field (one scan / full decode) |
-| `deep_parse`    | Walk the full tree: Campaign → Operations → Hackers     |
+| `deep_parse`        | Walk the full tree: Campaign → Operations → Hackers     |
-| `field_access`  | Read individual fields on an already-parsed message     |
+| `field_access`      | Read individual fields on an already-parsed message     |
-| `iterate`       | Count top-level and nested repeated fields              |
+| `iterate`           | Count top-level and nested repeated fields              |
+| `read_update_write` | Parse, update a field, and serialize back to a buffer   |
 
 ### 1 — Generate the shared data files (do this once)
 
@@ -267,6 +268,18 @@ criterion medians; C/upb times are the custom runner's mean over ≥ 0.5 s.
 > `shallow_parse`. `count_all_crew` also parses each `Operation` sub-message;
 > roto's per-level scans remain cheaper than upb's full decode.
 
+#### `read_update_write` — parse, update a field, and serialize back to a buffer
+
+| Size   |     Bytes | roto (ns) |    upb (ns) | roto speedup |
+| ------ | --------: | --------: | ----------: | -----------: |
+| tiny   |       588 |     153.8 |     1,120.3 |     **7.3×** |
+| small  |    20,265 |   1,301.8 |    42,089.6 |    **32.3×** |
+| medium | 2,071,053 | 302,090.0 | 9,233,397.9 |    **30.5×** |
+
+> roto's `with()` method allows copying fields directly from the original binary
+> without decoding them, making the update process extremely efficient. upb must
+> fully parse the message into structs and then re-serialize the entire tree.
+
 ### Interpreting the comparison
 
 The two libraries have fundamentally different models:

benches/benches/hackers_bench.rs

@@ -27,7 +27,7 @@
 //! - `iterate`        — counting repeated fields at different nesting depths
 
 use criterion::{BenchmarkId, Criterion, Throughput, criterion_group, criterion_main};
-use roto_benches::hackers::{Campaign, Hacker, Operation, Worm};
+use roto_benches::hackers::{Campaign, CampaignBuilder, Hacker, Operation, Worm};
 use std::hint::black_box;
 
 // =============================================================================
@@ -223,9 +223,11 @@ fn bench_read_update_write(c: &mut Criterion) {
                 let mut buf = vec![0u8; data.len() * 2];
                 let res = CampaignBuilder::builder(&mut buf)
                     .name("updated")
+                    .unwrap()
                     .with(&campaign)
+                    .unwrap()
                     .finish();
-                black_box(res)
+                black_box(res.unwrap().len())
             })
         });
     }

upb_test/hackers.upb_minitable.c

@@ -13,49 +13,73 @@
 // Must be last.
 #include "upb/port/def.inc"
 
-extern const struct upb_MiniTable UPB_PRIVATE(_kUpb_MiniTable_StaticallyTreeShaken);
+extern const UPB_PRIVATE(upb_GeneratedExtensionListEntry)* UPB_PRIVATE(upb_generated_extension_list);
-static const upb_MiniTableField Tool__fields[5] = {
+typedef struct {
+  upb_MiniTableField fields[5];
+} Tool_msg_init_Fields;
+
+static const Tool_msg_init_Fields Tool__fields = {{
   {1, 16, 0, kUpb_NoSub, 9, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
   {2, UPB_SIZE(24, 32), 0, kUpb_NoSub, 9, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
   {3, UPB_SIZE(32, 48), 0, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
   {4, 8, 0, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
   {5, 12, 0, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
-};
+}};
 
 const upb_MiniTable Tool_msg_init = {
-  NULL,
+  &Tool__fields.fields[0],
-  &Tool__fields[0],
+  UPB_SIZE(40, 64), 5, kUpb_ExtMode_NonExtendable, 5, UPB_FASTTABLE_MASK(56), 0,
-  UPB_SIZE(40, 64), 5, kUpb_ExtMode_NonExtendable, 5, UPB_FASTTABLE_MASK(255), 0,
 #ifdef UPB_TRACING_ENABLED
   "Tool",
 #endif
+  UPB_FASTTABLE_INIT({
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x001000003f00000a, &upb_DecodeFast_String_Scalar_Tag1Byte},
+    {0x002000003f000012, &upb_DecodeFast_String_Scalar_Tag1Byte},
+    {0x003000003f00001a, &upb_DecodeFast_Bytes_Scalar_Tag1Byte},
+    {0x000800003f000020, &upb_DecodeFast_Bool_Scalar_Tag1Byte},
+    {0x000c00003f000028, &upb_DecodeFast_Varint32_Scalar_Tag1Byte},
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+  })
 };
 
-const upb_MiniTable* Tool_msg_init_ptr = &Tool_msg_init;
+typedef struct {
-static const upb_MiniTableField Connection__fields[5] = {
+  upb_MiniTableField fields[5];
+} Connection_msg_init_Fields;
+
+static const Connection_msg_init_Fields Connection__fields = {{
   {1, 16, 0, kUpb_NoSub, 9, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
   {2, 12, 0, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
   {3, 8, 0, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
   {4, UPB_SIZE(32, 48), 0, kUpb_NoSub, 3, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_8Byte << kUpb_FieldRep_Shift)},
   {5, UPB_SIZE(24, 32), 0, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
-};
+}};
 
 const upb_MiniTable Connection_msg_init = {
-  NULL,
+  &Connection__fields.fields[0],
-  &Connection__fields[0],
+  UPB_SIZE(40, 56), 5, kUpb_ExtMode_NonExtendable, 5, UPB_FASTTABLE_MASK(56), 0,
-  UPB_SIZE(40, 56), 5, kUpb_ExtMode_NonExtendable, 5, UPB_FASTTABLE_MASK(255), 0,
 #ifdef UPB_TRACING_ENABLED
   "Connection",
 #endif
+  UPB_FASTTABLE_INIT({
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x001000003f00000a, &upb_DecodeFast_String_Scalar_Tag1Byte},
+    {0x000c00003f000010, &upb_DecodeFast_Varint32_Scalar_Tag1Byte},
+    {0x000800003f000018, &upb_DecodeFast_Bool_Scalar_Tag1Byte},
+    {0x003000003f000020, &upb_DecodeFast_Varint64_Scalar_Tag1Byte},
+    {0x002000003f00002a, &upb_DecodeFast_Bytes_Scalar_Tag1Byte},
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+  })
 };
 
-const upb_MiniTable* Connection_msg_init_ptr = &Connection_msg_init;
+typedef struct {
-static const upb_MiniTableSubInternal Hacker__submsgs[2] = {
+  upb_MiniTableField fields[9];
-  {.UPB_PRIVATE(submsg) = &Tool_msg_init_ptr},
+  upb_MiniTableSubInternal subs[2];
-  {.UPB_PRIVATE(submsg) = &Connection_msg_init_ptr},
+} Hacker_msg_init_Fields;
-};
 
-static const upb_MiniTableField Hacker__fields[9] = {
+static const Hacker_msg_init_Fields Hacker__fields = {{
   {1, UPB_SIZE(32, 24), 0, kUpb_NoSub, 9, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
   {2, 40, 0, kUpb_NoSub, 9, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
   {3, 12, 0, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
@@ -63,96 +87,138 @@ static const upb_MiniTableField Hacker__fields[9] = {
   {5, 9, 0, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
   {6, UPB_SIZE(48, 56), 0, kUpb_NoSub, 3, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_8Byte << kUpb_FieldRep_Shift)},
   {7, UPB_SIZE(20, 64), 0, kUpb_NoSub, 9, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
-  {8, UPB_SIZE(24, 72), 0, 0, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
+  {8, UPB_SIZE(24, 72), 0, UPB_SIZE(6, 7), 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
-  {9, UPB_SIZE(28, 80), 64, 1, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
+  {9, UPB_SIZE(28, 80), 64, UPB_SIZE(4, 6), 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
-};
+ },
+  {
+  {.UPB_PRIVATE(submsg) = &Tool_msg_init},
+  {.UPB_PRIVATE(submsg) = &Connection_msg_init},
+}};
 
 const upb_MiniTable Hacker_msg_init = {
-  &Hacker__submsgs[0],
+  &Hacker__fields.fields[0],
-  &Hacker__fields[0],
   UPB_SIZE(56, 88), 9, kUpb_ExtMode_NonExtendable, 9, UPB_FASTTABLE_MASK(56), 0,
 #ifdef UPB_TRACING_ENABLED
   "Hacker",
 #endif
   UPB_FASTTABLE_INIT({
     {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
-    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x001800003f00000a, &upb_DecodeFast_String_Scalar_Tag1Byte},
-    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x002800003f000012, &upb_DecodeFast_String_Scalar_Tag1Byte},
-    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x000c00003f000018, &upb_DecodeFast_Varint32_Scalar_Tag1Byte},
     {0x001000003f000025, &upb_DecodeFast_Fixed32_Scalar_Tag1Byte},
-    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x000900003f000028, &upb_DecodeFast_Bool_Scalar_Tag1Byte},
-    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x003800003f000030, &upb_DecodeFast_Varint64_Scalar_Tag1Byte},
-    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x004000003f00003a, &upb_DecodeFast_String_Repeated_Tag1Byte},
   })
 };
 
-const upb_MiniTable* Hacker_msg_init_ptr = &Hacker_msg_init;
+typedef struct {
-static const upb_MiniTableField Worm__fields[6] = {
+  upb_MiniTableField fields[6];
+} Worm_msg_init_Fields;
+
+static const Worm_msg_init_Fields Worm__fields = {{
   {1, UPB_SIZE(20, 16), 0, kUpb_NoSub, 9, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
   {2, 12, 0, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
   {3, UPB_SIZE(40, 48), 0, kUpb_NoSub, 3, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_8Byte << kUpb_FieldRep_Shift)},
   {4, UPB_SIZE(28, 32), 0, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
   {5, 8, 0, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
   {6, UPB_SIZE(16, 56), 0, kUpb_NoSub, 9, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
-};
+}};
 
 const upb_MiniTable Worm_msg_init = {
-  NULL,
+  &Worm__fields.fields[0],
-  &Worm__fields[0],
+  UPB_SIZE(48, 64), 6, kUpb_ExtMode_NonExtendable, 6, UPB_FASTTABLE_MASK(56), 0,
-  UPB_SIZE(48, 64), 6, kUpb_ExtMode_NonExtendable, 6, UPB_FASTTABLE_MASK(255), 0,
 #ifdef UPB_TRACING_ENABLED
   "Worm",
 #endif
+  UPB_FASTTABLE_INIT({
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x001000003f00000a, &upb_DecodeFast_String_Scalar_Tag1Byte},
+    {0x000c00003f000010, &upb_DecodeFast_Varint32_Scalar_Tag1Byte},
+    {0x003000003f000018, &upb_DecodeFast_Varint64_Scalar_Tag1Byte},
+    {0x002000003f000022, &upb_DecodeFast_Bytes_Scalar_Tag1Byte},
+    {0x000800003f000028, &upb_DecodeFast_Bool_Scalar_Tag1Byte},
+    {0x003800003f000032, &upb_DecodeFast_String_Repeated_Tag1Byte},
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+  })
 };
 
-const upb_MiniTable* Worm_msg_init_ptr = &Worm_msg_init;
+typedef struct {
-static const upb_MiniTableSubInternal Operation__submsgs[2] = {
+  upb_MiniTableField fields[9];
-  {.UPB_PRIVATE(submsg) = &Hacker_msg_init_ptr},
+  upb_MiniTableSubInternal subs[2];
-  {.UPB_PRIVATE(submsg) = &Worm_msg_init_ptr},
+} Operation_msg_init_Fields;
-};
 
-static const upb_MiniTableField Operation__fields[9] = {
+static const Operation_msg_init_Fields Operation__fields = {{
   {1, UPB_SIZE(28, 16), 0, kUpb_NoSub, 9, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
   {2, UPB_SIZE(36, 32), 0, kUpb_NoSub, 9, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
   {3, UPB_SIZE(56, 64), 0, kUpb_NoSub, 3, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_8Byte << kUpb_FieldRep_Shift)},
   {4, 9, 0, kUpb_NoSub, 8, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_1Byte << kUpb_FieldRep_Shift)},
   {5, UPB_SIZE(44, 48), 0, kUpb_NoSub, 12, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
-  {6, UPB_SIZE(12, 72), 0, 0, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
+  {6, UPB_SIZE(12, 72), 0, UPB_SIZE(12, 13), 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
-  {7, UPB_SIZE(16, 80), 64, 1, 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
+  {7, UPB_SIZE(16, 80), 64, UPB_SIZE(10, 12), 11, (int)kUpb_FieldMode_Scalar | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
   {8, UPB_SIZE(20, 88), 0, kUpb_NoSub, 9, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
   {9, UPB_SIZE(24, 12), 0, kUpb_NoSub, 5, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_4Byte << kUpb_FieldRep_Shift)},
-};
+ },
+  {
+  {.UPB_PRIVATE(submsg) = &Hacker_msg_init},
+  {.UPB_PRIVATE(submsg) = &Worm_msg_init},
+}};
 
 const upb_MiniTable Operation_msg_init = {
-  &Operation__submsgs[0],
+  &Operation__fields.fields[0],
-  &Operation__fields[0],
+  UPB_SIZE(64, 96), 9, kUpb_ExtMode_NonExtendable, 9, UPB_FASTTABLE_MASK(120), 0,
-  UPB_SIZE(64, 96), 9, kUpb_ExtMode_NonExtendable, 9, UPB_FASTTABLE_MASK(255), 0,
 #ifdef UPB_TRACING_ENABLED
   "Operation",
 #endif
+  UPB_FASTTABLE_INIT({
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x001000003f00000a, &upb_DecodeFast_String_Scalar_Tag1Byte},
+    {0x002000003f000012, &upb_DecodeFast_String_Scalar_Tag1Byte},
+    {0x004000003f000018, &upb_DecodeFast_Varint64_Scalar_Tag1Byte},
+    {0x000900003f000020, &upb_DecodeFast_Bool_Scalar_Tag1Byte},
+    {0x003000003f00002a, &upb_DecodeFast_Bytes_Scalar_Tag1Byte},
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x005800003f000042, &upb_DecodeFast_String_Repeated_Tag1Byte},
+    {0x000c00003f000048, &upb_DecodeFast_Varint32_Scalar_Tag1Byte},
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+  })
 };
 
-const upb_MiniTable* Operation_msg_init_ptr = &Operation_msg_init;
+typedef struct {
-static const upb_MiniTableSubInternal Campaign__submsgs[1] = {
+  upb_MiniTableField fields[3];
-  {.UPB_PRIVATE(submsg) = &Operation_msg_init_ptr},
+  upb_MiniTableSubInternal subs[1];
-};
+} Campaign_msg_init_Fields;
 
-static const upb_MiniTableField Campaign__fields[3] = {
+static const Campaign_msg_init_Fields Campaign__fields = {{
   {1, UPB_SIZE(12, 8), 0, kUpb_NoSub, 9, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_StringView << kUpb_FieldRep_Shift)},
-  {2, UPB_SIZE(8, 24), 0, 0, 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
+  {2, UPB_SIZE(8, 24), 0, UPB_SIZE(6, 7), 11, (int)kUpb_FieldMode_Array | ((int)UPB_SIZE(kUpb_FieldRep_4Byte, kUpb_FieldRep_8Byte) << kUpb_FieldRep_Shift)},
   {3, UPB_SIZE(24, 32), 0, kUpb_NoSub, 3, (int)kUpb_FieldMode_Scalar | ((int)kUpb_FieldRep_8Byte << kUpb_FieldRep_Shift)},
-};
+ },
+  {
+  {.UPB_PRIVATE(submsg) = &Operation_msg_init},
+}};
 
 const upb_MiniTable Campaign_msg_init = {
-  &Campaign__submsgs[0],
+  &Campaign__fields.fields[0],
-  &Campaign__fields[0],
+  UPB_SIZE(32, 40), 3, kUpb_ExtMode_NonExtendable, 3, UPB_FASTTABLE_MASK(24), 0,
-  UPB_SIZE(32, 40), 3, kUpb_ExtMode_NonExtendable, 3, UPB_FASTTABLE_MASK(255), 0,
 #ifdef UPB_TRACING_ENABLED
   "Campaign",
 #endif
+  UPB_FASTTABLE_INIT({
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x000800003f00000a, &upb_DecodeFast_String_Scalar_Tag1Byte},
+    {0x0000000000000000, &_upb_FastDecoder_DecodeGeneric},
+    {0x002000003f000018, &upb_DecodeFast_Varint64_Scalar_Tag1Byte},
+  })
 };
 
-const upb_MiniTable* Campaign_msg_init_ptr = &Campaign_msg_init;
 static const upb_MiniTable *messages_layout[6] = {
   &Tool_msg_init,
   &Connection_msg_init,

upb_test/hackers.upb_minitable.h

@@ -19,17 +19,11 @@ extern "C" {
 #endif
 
 extern const upb_MiniTable Tool_msg_init;
-extern const upb_MiniTable* Tool_msg_init_ptr;
 extern const upb_MiniTable Connection_msg_init;
-extern const upb_MiniTable* Connection_msg_init_ptr;
 extern const upb_MiniTable Hacker_msg_init;
-extern const upb_MiniTable* Hacker_msg_init_ptr;
 extern const upb_MiniTable Worm_msg_init;
-extern const upb_MiniTable* Worm_msg_init_ptr;
 extern const upb_MiniTable Operation_msg_init;
-extern const upb_MiniTable* Operation_msg_init_ptr;
 extern const upb_MiniTable Campaign_msg_init;
-extern const upb_MiniTable* Campaign_msg_init_ptr;
 
 extern const upb_MiniTableFile hackers_proto_upb_file_layout;
 

upb_test/hackers_bench.c

@@ -66,7 +66,7 @@ typedef struct {
 } BenchData;
 
 static bool load_bench_data(BenchData *out, const char *name) {
-    snprintf(out->path, sizeof(out->path), "../data/bench/%s.pb", name);
+    snprintf(out->path, sizeof(out->path), "data/bench/%s.pb", name);
     FILE *f = fopen(out->path, "rb");
     if (!f) {
         printf("[skip] %s not found — "