geoff evans af1784ca1d Add -tracefiletrunc cmdline option to allow for overwriting a trace named on the commane line. ...

This is desired for data center builds where we only care about one trace at a time, and uniquely naming or rotating the file name just makes for extra complexity and bug risk in calling code. Also, for incremental worker configurations we can leak disk consumption if we use a different file name every time.

Win/Mac/Linux all have the truncate file open flag set, so the platform file code should all allow for this.

Tested on windows.

#rb martin.ridgers, francis.hurteau

[CL 14828368 by geoff evans in ue5-main branch]

2020-12-01 11:46:13 -04:00

..

Apple

Updating copyright for Engine Runtime.

2019-12-26 14:45:42 -05:00

Windows

Add tags to memory tracing.

2020-11-30 06:05:56 -04:00

ABTesting.cpp

Merge UE5/Release-Engine-Staging to UE5/Main @ 14611496

2020-10-29 13:38:15 -04:00

CookStats.cpp

Updating copyright for Engine Runtime.

2019-12-26 14:45:42 -05:00

CountersTrace.cpp

Moved the Trace namespace into the UE namespace.

2020-11-17 06:54:28 -04:00

CpuProfilerTrace.cpp

Moved the Trace namespace into the UE namespace.

2020-11-17 06:54:28 -04:00

CsvProfiler.cpp

Merge UE5/Release-Engine-Staging @ 14811410 to UE5/Main

2020-11-24 18:42:39 -04:00

CsvProfilerTrace.cpp

Moved the Trace namespace into the UE namespace.

2020-11-17 06:54:28 -04:00

ExternalProfiler.cpp

Merge UE5/Release-Engine-Staging to UE5/Main @ 14611496

2020-10-29 13:38:15 -04:00

Histogram.cpp

Updating copyright for Engine Runtime.

2019-12-26 14:45:42 -05:00

InstanceCounter.cpp

Updating copyright for Engine Runtime.

2019-12-26 14:45:42 -05:00

LoadTimeTracker.cpp

Updating copyright for Engine Runtime.

2019-12-26 14:45:42 -05:00

MallocProfiler.cpp

Updating copyright for Engine Runtime.

2019-12-26 14:45:42 -05:00

MemoryTrace.h

Fix header guards

2020-10-28 15:03:04 -04:00

MiscTrace.cpp

Moved the Trace namespace into the UE namespace.

2020-11-17 06:54:28 -04:00

PlatformFileTrace.cpp

Merging using //UE5/Main_to_//UE5/Release-Engine-Staging @14384769

2020-09-24 00:43:27 -04:00

ProfilingHelpers.cpp

Updating copyright for Engine Runtime.

2019-12-26 14:45:42 -05:00

ScopedDebugInfo.cpp

Updating copyright for Engine Runtime.

2019-12-26 14:45:42 -05:00

TagTrace.cpp

Add tags to memory tracing.

2020-11-30 06:05:56 -04:00

TraceAuxiliary.cpp

Add -tracefiletrunc cmdline option to allow for overwriting a trace named on the commane line.

2020-12-01 11:46:13 -04:00