Re: Bug#863636: diffoscope: usage of FIFOs causes pair-comparisons to not run in parallel, wasting performance by about 1/2

2017-05-30 Thread Ximin Luo
Ximin Luo: > Package: diffoscope > Version: 78 > Severity: normal > > Dear Maintainer, > > diff(1) first reads the contents of one file then the next one: > > https://sources.debian.net/src/diffutils/1:3.5-3/src/io.c/#L552 > > This means that if the "files" are actually FIFOs connected to the

Re: Bug#863636: diffoscope: usage of FIFOs causes pair-comparisons to not run in parallel, wasting performance by about 1/2

2017-05-30 Thread Ximin Luo
Ximin Luo: > Ximin Luo: >> Package: diffoscope >> Version: 78 >> Severity: normal >> >> Dear Maintainer, >> >> diff(1) first reads the contents of one file then the next one: >> >> https://sources.debian.net/src/diffutils/1:3.5-3/src/io.c/#L552 >> >> This means that if the "files" are actually