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* Start recording asset request times after a cache miss. This is very primtive at the moment - only the last time is kept for some classes of request 

* This can be seen as "Latest asset request time after cache miss" in show stats on the region console
0.6.0-stable
Justin Clarke Casey 2008-09-21 20:29:06 +00:00
parent 70e8097e31
commit 8fb3523ef7
2 changed files with 33 additions and 6 deletions
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16
OpenSim/Framework/Communications/Cache/AssetCache.cs
View File

@ -268,8 +268,11 @@ namespace OpenSim.Framework.Communications.Cache
{
// m_log.DebugFormat("[ASSET CACHE]: Adding request for {0} {1}", isTexture ? "texture" : "asset", assetId);
requestList = new AssetRequestsList(assetId);
RequestLists.Add(assetId, requestList);
requestList.TimeRequested = DateTime.Now;
requestList.Requests.Add(req);
RequestLists.Add(assetId, requestList);
m_assetServer.RequestAsset(assetId, isTexture);
}
}
@ -446,6 +449,9 @@ namespace OpenSim.Framework.Communications.Cache
if (reqList != null)
{
if (StatsManager.SimExtraStats != null)
StatsManager.SimExtraStats.AddAssetRequestTimeAfterCacheMiss(DateTime.Now - reqList.TimeRequested);
foreach (NewAssetRequest req in reqList.Requests)
{
// Xantor 20080526 are we really calling all the callbacks if multiple queued for 1 request? -- Yes, checked
@ -479,6 +485,9 @@ namespace OpenSim.Framework.Communications.Cache
if (reqList != null)
{
if (StatsManager.SimExtraStats != null)
StatsManager.SimExtraStats.AddAssetRequestTimeAfterCacheMiss(DateTime.Now - reqList.TimeRequested);
foreach (NewAssetRequest req in reqList.Requests)
{
req.Callback(assetID, null);
@ -671,6 +680,11 @@ namespace OpenSim.Framework.Communications.Cache
public UUID AssetID;
public List<NewAssetRequest> Requests = new List<NewAssetRequest>();
/// <summary>
/// Record the time that this request was first made.
/// </summary>
public DateTime TimeRequested;
public AssetRequestsList(UUID assetID)
{
AssetID = assetID;

19
OpenSim/Framework/Statistics/SimExtraStatsCollector.cs
View File

@ -45,6 +45,7 @@ namespace OpenSim.Framework.Statistics
private long texturesInCache;
private long assetCacheMemoryUsage;
private long textureCacheMemoryUsage;
private TimeSpan assetRequestTimeAfterCacheMiss;
private long blockedMissingTextureRequests;
private long assetServiceRequestFailures;
@ -87,6 +88,11 @@ namespace OpenSim.Framework.Statistics
public long AssetCacheMemoryUsage { get { return assetCacheMemoryUsage; } }
public long TextureCacheMemoryUsage { get { return textureCacheMemoryUsage; } }
/// <summary>
/// This is the time it took for the last asset request made in response to a cache miss.
/// </summary>
public TimeSpan AssetRequestTimeAfterCacheMiss { get { return assetRequestTimeAfterCacheMiss; } }
/// <summary>
/// Number of persistent requests for missing textures we have started blocking from clients. To some extent
/// this is just a temporary statistic to keep this problem in view - the root cause of this lies either
@ -148,7 +154,7 @@ namespace OpenSim.Framework.Statistics
}
/// <summary>
/// Signal that the asset cache can be cleared.
/// Signal that the asset cache has been cleared.
/// </summary>
public void ClearAssetCacheStatistics()
{
@ -158,6 +164,11 @@ namespace OpenSim.Framework.Statistics
textureCacheMemoryUsage = 0;
}
public void AddAssetRequestTimeAfterCacheMiss(TimeSpan ts)
{
assetRequestTimeAfterCacheMiss = ts;
}
public void AddBlockedMissingTextureRequest()
{
blockedMissingTextureRequests++;
@ -245,10 +256,12 @@ namespace OpenSim.Framework.Statistics
string.Format(
@"Asset cache contains {0,6} non-texture assets using {1,10} K
Texture cache contains {2,6} texture assets using {3,10} K
Blocked client requests for missing textures: {4}
Asset service request failures: {5}"+ Environment.NewLine,
Latest asset request time after cache miss: {4}s
Blocked client requests for missing textures: {5}
Asset service request failures: {6}"+ Environment.NewLine,
AssetsInCache, Math.Round(AssetCacheMemoryUsage / 1024.0),
TexturesInCache, Math.Round(TextureCacheMemoryUsage / 1024.0),
assetRequestTimeAfterCacheMiss.Milliseconds / 1000.0,
BlockedMissingTextureRequests,
AssetServiceRequestFailures));