mirror of
https://git.savannah.gnu.org/git/parallel.git
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47 lines
3 KiB
Plaintext
47 lines
3 KiB
Plaintext
echo '### Trouble reading a record > 2 GB for certain versions of Perl (substr($a,0,2G+1)="fails")'
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### Trouble reading a record > 2 GB for certain versions of Perl (substr($a,0,2G+1)="fails")
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echo '### perl -e $buf=("x"x(2**31))."x"; substr($buf,0,2**31+1)=""; print length $buf'
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### perl -e $buf=("x"x(2**31))."x"; substr($buf,0,2**31+1)=""; print length $buf
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'
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/bin/bash: -c: line 0: unexpected EOF while looking for matching `''
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/bin/bash: -c: line 1: syntax error: unexpected end of file
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echo 'Eats 2.5 GB'
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Eats 2.5 GB
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(yes "`echo {1..100}`" | head -c 2300M; echo ged) | PERL5LIB=input-files/perl-v5.14.2/lib input-files/perl-v5.14.2/perl `which parallel` -k --block 2G --pipe --recend ged md5sum
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131cbd7a7f1d19de3dabb379c716396b -
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68b329da9893e34099c7d8ad5cb9c940 -
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parallel: Warning: --blocksize >= 2G causes problems. Using 2G-1
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echo 'Eats 2.5 GB'
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Eats 2.5 GB
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(yes "`echo {1..100}`" | head -c 2300M; echo ged) | PERL5LIB=input-files/perl-v5.14.2/lib input-files/perl-v5.14.2/perl `which parallel` -k --block 2G --pipe --recend ged cat | wc -c
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2411724804
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parallel: Warning: --blocksize >= 2G causes problems. Using 2G-1
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echo '**'
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**
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echo '### bug #44358: 2 GB records cause problems for -N'
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### bug #44358: 2 GB records cause problems for -N
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echo '5 GB version: Eats 12.5 GB'
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5 GB version: Eats 12.5 GB
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(yes "`echo {1..100}`" | head -c 5000000000; echo FOO; yes "`echo {1..100}`" | head -c 3000000000; echo FOO; yes "`echo {1..100}`" | head -c 1000000000;) | PERL5LIB=input-files/perl-v5.14.2/lib input-files/perl-v5.14.2/perl `which parallel` --pipe --recend FOO -N2 --block 1g -k LANG=c wc -c
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8000000007
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1000000001
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parallel: Warning: A record was longer than 1000000000. Increasing to --blocksize 1300000001
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parallel: Warning: A record was longer than 1300000001. Increasing to --blocksize 1690000003
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parallel: Warning: A record was longer than 1690000003. Increasing to --blocksize 2147483647
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echo '2 GB version: eats 10 GB'
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2 GB version: eats 10 GB
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(yes "`echo {1..100}`" | head -c 2300M; echo FOO; yes "`echo {1..100}`" | head -c 2300M; echo FOO; yes "`echo {1..100}`" | head -c 1000M;) | PERL5LIB=input-files/perl-v5.14.2/lib input-files/perl-v5.14.2/perl `which parallel` --pipe --recend FOO -N2 --block 1g -k LANG=c wc -c
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4823449607
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1048576001
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parallel: Warning: A record was longer than 1000000000. Increasing to --blocksize 1300000001
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parallel: Warning: A record was longer than 1300000001. Increasing to --blocksize 1690000003
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parallel: Warning: A record was longer than 1690000003. Increasing to --blocksize 2147483647
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echo '### -L >4GB'
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### -L >4GB
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(head -c 5000000000 /dev/zero; echo FOO; head -c 3000000000 /dev/zero; echo FOO; head -c 1000000000 /dev/zero;) | parallel --pipe -L2 --block 1g -k LANG=c wc -c
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8000000008
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1000000000
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parallel: Warning: A record was longer than 1000000000. Increasing to --blocksize 1300000001
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parallel: Warning: A record was longer than 1300000001. Increasing to --blocksize 1690000003
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parallel: Warning: A record was longer than 1690000003. Increasing to --blocksize 2147483647
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