public ScratchBufferPoolInfo InfoForDebug(long oldestActiveTransaction)
{
var currentFile = _current.File;
var scratchBufferPoolInfo = new ScratchBufferPoolInfo
{
OldestActiveTransaction = oldestActiveTransaction,
NumberOfScratchFiles = _scratchBuffers.Count,
CurrentFileNumber = currentFile.Number,
CurrentFileSizeInMB = currentFile.Size / 1024L / 1024L,
PerScratchFileSizeLimitInMB = _options.MaxScratchBufferSize / 1024L / 1024L,
CurrentUtcTime = DateTime.UtcNow
};
foreach (var scratchBufferItem in _scratchBuffers.Values.OrderBy(x => x.Number))
{
var current = _current;
var scratchFileUsage = new ScratchFileUsage
{
Name = StorageEnvironmentOptions.ScratchBufferName(scratchBufferItem.File.Number),
SizeInKB = scratchBufferItem.File.Size / 1024,
NumberOfAllocations = scratchBufferItem.File.NumberOfAllocations,
AllocatedPagesCount = scratchBufferItem.File.AllocatedPagesCount,
CanBeDeleted = scratchBufferItem != current && scratchBufferItem.File.HasActivelyUsedBytes(oldestActiveTransaction) == false,
TxIdAfterWhichLatestFreePagesBecomeAvailable = scratchBufferItem.File.TxIdAfterWhichLatestFreePagesBecomeAvailable,
IsInRecycleArea = _recycleArea.Contains(scratchBufferItem),
NumberOfResets = scratchBufferItem.File.DebugInfo.NumberOfResets,
LastResetTime = scratchBufferItem.File.DebugInfo.LastResetTime,
LastFreeTime = scratchBufferItem.File.DebugInfo.LastFreeTime
};
foreach (var freePage in scratchBufferItem.File.DebugInfo.GetMostAvailableFreePagesBySize())
{
scratchFileUsage.MostAvailableFreePages.Add(new MostAvailableFreePagesBySize
{
Size = freePage.Key,
ValidAfterTransactionId = freePage.Value
});
}
foreach (var allocatedPage in scratchBufferItem.File.DebugInfo.GetFirst10AllocatedPages())
{
scratchFileUsage.First10AllocatedPages.Add(new AllocatedPageInScratchBuffer()
{
NumberOfPages = allocatedPage.NumberOfPages,
PositionInScratchBuffer = allocatedPage.PositionInScratchBuffer,
ScratchFileNumber = allocatedPage.ScratchFileNumber,
ScratchPageNumber = allocatedPage.ScratchPageNumber,
Size = allocatedPage.Size
});
}
scratchBufferPoolInfo.ScratchFilesUsage.Add(scratchFileUsage);
}
return(scratchBufferPoolInfo);
}
public ScratchBufferPoolInfo InfoForDebug(long oldestActiveTransaction)
{
var currentFile = _current.File;
var scratchBufferPoolInfo = new ScratchBufferPoolInfo
{
OldestActiveTransaction = oldestActiveTransaction,
NumberOfScratchFiles = _scratchBuffers.Count,
CurrentFileNumber = currentFile.Number,
CurrentFileSizeInMB = currentFile.Size / 1024L / 1024L,
PerScratchFileSizeLimitInMB = _options.MaxScratchBufferSize / 1024L / 1024L
};
foreach (var scratchBufferItem in _scratchBuffers.Values.OrderBy(x => x.Number))
{
var current = _current;
var scratchFileUsage = new ScratchFileUsage
{
Name = StorageEnvironmentOptions.ScratchBufferName(scratchBufferItem.File.Number),
SizeInKB = scratchBufferItem.File.Size / 1024,
NumberOfAllocations = scratchBufferItem.File.NumberOfAllocations,
AllocatedPagesCount = scratchBufferItem.File.AllocatedPagesCount,
CanBeDeleted = scratchBufferItem != current && scratchBufferItem.File.HasActivelyUsedBytes(oldestActiveTransaction) == false,
TxIdAfterWhichLatestFreePagesBecomeAvailable = scratchBufferItem.File.TxIdAfterWhichLatestFreePagesBecomeAvailable
};
foreach (var freePage in scratchBufferItem.File.GetMostAvailableFreePagesBySize())
{
scratchFileUsage.MostAvailableFreePages.Add(new MostAvailableFreePagesBySize
{
Size = freePage.Key,
ValidAfterTransactionId = freePage.Value
});
}
scratchBufferPoolInfo.ScratchFilesUsage.Add(scratchFileUsage);
}
return(scratchBufferPoolInfo);
}