Pádraig Brady wrote: > > I cannot estimate how much of these 10 MB get actually loaded into a > > process' working set. ... > > $ uconv -x NFC& > $ sudo bin/ps_mem.py | grep uconv > Private + Shared = RAM used Program > 1.9 MiB + 788.0 KiB = 2.7 MiB uconv
A great tool! Let's see how it compares to a normalization program built against gnulib: $ /arch/x86-linux/inst-icu/3.6/bin/uconv -x NFC & $ ./unorm NFC & # ./bin/ps_mem.py |grep uconv 2.3 MiB + 126.5 KiB = 2.4 MiB uconv # ./bin/ps_mem.py |grep unorm 100.0 KiB + 11.5 KiB = 111.5 KiB unorm So, it uses about 20 times less memory. Now let me try to compare the speed (averaged over 100 consecutive runs, to eliminate the effects of load dependent CPU frequency scaling): $ time uconv -x NFD < $UCD51/NormalizationTest.txt > /tmp/1 real 0m0.612s user 0m0.597s sys 0m0.014s $ time ./unorm NFD < $UCD51/NormalizationTest.txt > /tmp/2 real 0m0.261s user 0m0.247s sys 0m0.014s $ time uconv -x NFKC < $UCD51/NormalizationTest.txt > /tmp/1 real 0m0.598s user 0m0.583s sys 0m0.014s $ time ./unorm NFKC < $UCD51/NormalizationTest.txt > /tmp/2 real 0m0.309s user 0m0.297s sys 0m0.011s So, it's also twice as fast. The gnulib modules used are: uninorm/filter uninorm/nfc uninorm/nfd uninorm/nfkc uninorm/nfkd unistr/u8-uctomb unistr/u8-mbtoucr Bruno _______________________________________________ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
