R Under development (unstable) (2026-01-21 r89314 ucrt) -- "Unsuffered Consequences" Copyright (C) 2026 The R Foundation for Statistical Computing Platform: x86_64-w64-mingw32/x64 R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to redistribute it under certain conditions. Type 'license()' or 'licence()' for distribution details. R is a collaborative project with many contributors. Type 'contributors()' for more information and 'citation()' on how to cite R or R packages in publications. Type 'demo()' for some demos, 'help()' for on-line help, or 'help.start()' for an HTML browser interface to help. Type 'q()' to quit R. > Sys.setenv(OMP_THREAD_LIMIT = Sys.getenv("OMP_THREAD_LIMIT", "2")) > require(data.table) Loading required package: data.table Attaching package: 'data.table' The following object is masked from 'package:base': %notin% > test.data.table(script="mergelist.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/mergelist.Rraw.bz2 Thu Jan 22 21:40:12 2026 endian==little, sizeof(long double)==16, capabilities('long.double')==TRUE, 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.', .libPaths()=='D:/temp/2026_01_22_21_30_17_19123/RtmpW6s6z8/RLIBS_c54458052238','D:/RCompile/recent/R/library', zlibVersion()==1.3.1 ZLIB_VERSION==1.3.1 10 longest running tests took 0s (60% of 1s) ID time nTest 1: 28 0.11 64 2: 291 0.10 6 3: 121 0.09 54 4: 24 0.08 64 5: 102 0.07 44 6: 104 0.06 30 7: 222 0.06 16 8: 26 0.05 64 9: 101 0.05 43 10: 103 0.05 48 All 1022 tests (last 302.2) in tests/mergelist.Rraw.bz2 completed ok in 1.640s elapsed (1.560s cpu) > > proc.time() user system elapsed 1.76 0.10 1.87