feat: Add jemalloc (#736)

Jemalloc seems to help in cases where do many small/fragmented allocs

Before (many spans):
<img width="725" alt="image"
src="https://github.com/user-attachments/assets/f270d9dd-02e9-4db5-904f-fc25ec17bdc2"
/>


After:
<img width="699" alt="image"
src="https://github.com/user-attachments/assets/17887462-4302-4a78-a049-1cdf052999da"
/>

Author: astuyve

.gitlab/datasources/flavors.yaml

@@ -6,7 +6,7 @@ flavors:
     needs_layer_publish: true
     suffix: amd64
     layer_name_base_suffix: ""
-    max_layer_compressed_size_mb: 25
+    max_layer_compressed_size_mb: 26
     max_layer_uncompressed_size_mb: 54
 
   - name: arm64
@@ -16,7 +16,7 @@ flavors:
     needs_layer_publish: true
     suffix: arm64
     layer_name_base_suffix: "-ARM"
-    max_layer_compressed_size_mb: 22
+    max_layer_compressed_size_mb: 23
     max_layer_uncompressed_size_mb: 50
 
   - name: amd64, alpine
@@ -40,7 +40,7 @@ flavors:
     needs_layer_publish: true
     suffix: amd64-fips
     layer_name_base_suffix: "-FIPS"
-    max_layer_compressed_size_mb: 25
+    max_layer_compressed_size_mb: 26
     max_layer_uncompressed_size_mb: 56
 
   - name: arm64, fips
@@ -50,7 +50,7 @@ flavors:
     needs_layer_publish: true
     suffix: arm64-fips
     layer_name_base_suffix: "-ARM-FIPS"
-    max_layer_compressed_size_mb: 22
+    max_layer_compressed_size_mb: 23
     max_layer_uncompressed_size_mb: 52
 
   - name: amd64, fips, alpine

LICENSE-3rdparty.csv

@@ -78,14 +78,16 @@ name = "bottlecap"
 opt-level = "z"  # Optimize for size.
 lto = true
 codegen-units = 1
-strip = true
 
 [profile.release-alpine-arm64-fips]
 inherits = "release"
 # Unfortunately opt-level "z" does not work for building aws-lc-fips-sys on
 # Alpine for ARM with FIPS enabled.
 opt-level = 3
 
+[target.'cfg(not(target_env = "msvc"))'.dependencies]
+tikv-jemallocator = "0.5"
+
 [features]
 default = ["reqwest/rustls-tls", "dogstatsd/default", "datadog-fips/default" ]
 fips = [

bottlecap/Cargo.lock

@@ -9,6 +9,13 @@
 #![deny(missing_copy_implementations)]
 #![deny(missing_debug_implementations)]
 
+#[cfg(not(target_env = "msvc"))]
+use tikv_jemallocator::Jemalloc;
+
+#[cfg(not(target_env = "msvc"))]
+#[global_allocator]
+static GLOBAL: Jemalloc = Jemalloc;
+
 use bottlecap::{
     base_url,
     config::{