Miscellaneous minor LLM fixes (#268)v5.5.17-pre0

With this change, LLM tags are assigned using the name,parent tuple rather than just by name only. This allows tag hierarchies like `cache/store` and `project/store` which would previously get collapsed into the first pair seen when registering the `store` tag.

This PR also adds some more LLM tag annotations to more accurately associate memory allocations with subsystems

In addition, this PR also tweaks the frequency of timer marker events to increase the resolution in Insights and avoid some cases of Insights deciding that marker events are too far apart since we don't allocate as frequently as UE tends to.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/zenstore/cache/cachedisklayer.cpp b/src/zenstore/cache/cachedisklayer.cpp
index 9f09713ee..cbc1d6e83 100644
--- a/src/zenstore/cache/cachedisklayer.cpp
+++ b/src/zenstore/cache/cachedisklayer.cpp
@@ -1267,6 +1267,7 @@ ZenCacheDiskLayer::CacheBucket::EndPutBatch(PutBatchHandle* Batch) noexcept
 
 			size_t IndexOffset = 0;
 			m_BlockStore.WriteChunks(Batch->Buffers, m_Configuration.PayloadAlignment, [&](std::span<BlockStoreLocation> Locations) {
+				ZEN_MEMSCOPE(GetCacheDiskTag());
 				std::vector<DiskIndexEntry> DiskEntries;
 				{
 					RwLock::ExclusiveLockScope IndexLock(m_IndexLock);
@@ -2679,6 +2680,7 @@ ZenCacheDiskLayer::CacheBucket::PutInlineCacheValue(const IoHash&		 HashKey,
 							Value.Value.Size(),
 							m_Configuration.PayloadAlignment,
 							[&](const BlockStoreLocation& BlockStoreLocation) {
+								ZEN_MEMSCOPE(GetCacheDiskTag());
 								ZEN_TRACE_CPU("Z$::Bucket::UpdateLocation");
 								DiskLocation Location(BlockStoreLocation, m_Configuration.PayloadAlignment, EntryFlags);
 								m_SlogFile.Append({.Key = HashKey, .Location = Location});