Change the default value of `experimental_remote_cache_compression_th…

…reshold` to `100`.

Based on discussions in bazelbuild#18997, `~100` is the break even point where the compression actually helps the builds.

RELNOTES: The default value of `--experimental_remote_cache_compression_threshold` is changed to `100`.
PiperOrigin-RevId: 670948584
Change-Id: I33ef54e84d68da5df5526a95cd9b7d94e746c9b5

src/main/java/com/google/devtools/build/lib/remote/options/RemoteOptions.java

@@ -412,7 +412,9 @@ public RemoteBuildEventUploadModeConverter() {
 
   @Option(
       name = "experimental_remote_cache_compression_threshold",
-      defaultValue = "0",
+      // Based on discussions in #18997, `~100` is the break even point where the compression
+      // actually helps the builds.
+      defaultValue = "100",
       documentationCategory = OptionDocumentationCategory.REMOTE,
       effectTags = {OptionEffectTag.UNKNOWN},
       help =

src/test/java/com/google/devtools/build/lib/remote/GrpcCacheClientTest.java

@@ -1242,6 +1242,7 @@ public void compressedDownloadBlobIsRetriedWithProgress()
       throws IOException, InterruptedException {
     RemoteOptions options = Options.getDefaults(RemoteOptions.class);
     options.cacheCompression = true;
+    options.cacheCompressionThreshold = 0;
     final GrpcCacheClient client = newClient(options);
     final Digest digest = DIGEST_UTIL.computeAsUtf8("abcdefg");
     ByteString chunk1 = ByteString.copyFrom(Zstd.compress("abc".getBytes(UTF_8)));