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Cache immutable Wasm server configuration encoding

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udo
2026-07-18 03:43:44 +00:00
parent a043fb8fc7
commit 516ed94032
6 changed files with 134 additions and 23 deletions
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src/wasm/worker.cpp
+11 -4
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@@ -187,6 +187,7 @@ struct WasmRequestProfile
u64 context_apply_us = 0;
u64 context_apply_cpu_us = 0;
u64 context_bytes = 0;
u64 server_config_bytes = 0;
u64 context_encode_us = 0;
u64 context_allocate_us = 0;
u64 context_write_us = 0;
@@ -978,6 +979,7 @@ public:
std::optional<wasmtime::Linker> core_linker;
std::unique_ptr<wasmtime_instance_pre_t, WasmInstancePreDeleter> core_instance_pre;
DValue server_config_context;
String server_config_encoded;
struct CoreImport
{
String module;
@@ -1532,21 +1534,25 @@ public:
return(elapsed);
};
String encoded = ucb_encode(context_tree);
context_bytes = encoded.size();
server_config_bytes = worker.server_config_encoded.size();
context_bytes = server_config_bytes + encoded.size();
context_encode_us = phase_us();
int32_t guest_ptr = 0;
String error = call_core("uce_alloc", { (int32_t)encoded.size() }, &guest_ptr);
String error = call_core("uce_alloc", { (int32_t)context_bytes }, &guest_ptr);
context_allocate_us = phase_us();
if(error != "")
return(error);
if(guest_ptr == 0)
return("guest uce_alloc failed for context buffer");
error = guest_write((u32)guest_ptr, encoded);
error = guest_write((u32)guest_ptr, worker.server_config_encoded);
if(error == "")
error = guest_write((u32)guest_ptr + (u32)server_config_bytes, encoded);
context_write_us = phase_us();
if(error != "")
return(error);
int32_t rc = 0;
error = call_core("uce_wasm_apply_context", { guest_ptr, (int32_t)encoded.size() }, &rc);
error = call_core("uce_wasm_apply_context", { guest_ptr, (int32_t)server_config_bytes,
guest_ptr + (int32_t)server_config_bytes, (int32_t)encoded.size() }, &rc);
context_guest_apply_us = phase_us();
if(error != "")
return(error);
@@ -2592,6 +2598,7 @@ private:
response["context_apply_us"] = (f64)self->context_apply_us;
response["context_apply_cpu_us"] = (f64)self->context_apply_cpu_us;
response["context_bytes"] = (f64)self->context_bytes;
response["server_config_bytes"] = (f64)self->server_config_bytes;
response["context_encode_us"] = (f64)self->context_encode_us;
response["context_allocate_us"] = (f64)self->context_allocate_us;
response["context_write_us"] = (f64)self->context_write_us;