R Under development (unstable) (2023-12-04 r85659 ucrt) -- "Unsuffered Consequences"
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> require(data.table)
Loading required package: data.table
> 
> test.data.table()  # runs the main test suite of 5,000+ tests in /inst/tests/tests.Rraw
getDTthreads(verbose=TRUE):
  OpenMP version (_OPENMP)       201511
  omp_get_num_procs()            48
  R_DATATABLE_NUM_PROCS_PERCENT  unset (default 50)
  R_DATATABLE_NUM_THREADS        unset
  R_DATATABLE_THROTTLE           unset (default 1024)
  omp_get_thread_limit()         2
  omp_get_max_threads()          48
  OMP_THREAD_LIMIT               2
  OMP_NUM_THREADS                unset
  RestoreAfterFork               true
  data.table is using 2 threads with throttle==1024. See ?setDTthreads.
test.data.table() running: D:/RCompile/CRANincoming/R-devel/lib/data.table/tests/tests.Rraw.bz2 

Thu Dec  7 22:11:07 2023  endian==little, sizeof(long double)==16, longdouble.digits==64, sizeof(pointer)==8, TZ==unset, Sys.timezone()=='Europe/Berlin', Sys.getlocale()=='LC_COLLATE=C;LC_CTYPE=German_Germany.utf8;LC_MONETARY=C;LC_NUMERIC=C;LC_TIME=C', l10n_info()=='MBCS=TRUE; UTF-8=TRUE; Latin-1=FALSE; codepage=65001; system.codepage=65001', getDTthreads()=='OpenMP version (_OPENMP)==201511; omp_get_num_procs()==48; R_DATATABLE_NUM_PROCS_PERCENT==unset (default 50); R_DATATABLE_NUM_THREADS==unset; R_DATATABLE_THROTTLE==unset (default 1024); omp_get_thread_limit()==2; omp_get_max_threads()==48; OMP_THREAD_LIMIT==2; OMP_NUM_THREADS==unset; RestoreAfterFork==true; data.table is using 2 threads with throttle==1024. See ?setDTthreads.', zlibVersion()==1.3 ZLIB_VERSION==1.3
10 longest running tests took 154s (76%% of 200s)
      ID  time nTest
 1: 1621 20.60     2
 2:  900 20.55     2
 3:  901 20.52     2
 4: 1449 19.87     2
 5: 1555 19.84    13
 6: 1453 11.05     1
 7: 1658 10.54    61
 8: 1608 10.47     1
 9: 1037 10.41    21
10: 1036 10.25    10
All 9906 tests (last 2163) in tests/tests.Rraw.bz2 completed ok in 00:03:23 elapsed (46.9s cpu)
Warning message:
In (function (category = "LC_ALL", locale = "")  :
  using locale code page other than 65001 ("UTF-8") may cause problems
> 
> # Turn on showProgress temporarily for GLCI and CRAN (not interactive()) when a segfault
> # occurs and it's taking time to reproduce locally. See comments in PR#4090.
> # test.data.table(showProgress=TRUE)
> 
> # Turn off verbose repeat to save time (particularly Travis, but also CRAN) :
> # test.data.table(verbose=TRUE)
> # Calling it again in the past revealed some memory bugs but also verbose mode checks the verbose messages run ok
> # TO DO: check we test each verbose message at least once, instead of a full repeat of all tests
> 
> proc.time()
   user  system elapsed 
  47.04  145.20  203.90