From: Taylor Blau <me@ttaylorr.com>
To: Jonathan Tan <jonathantanmy@google.com>
Cc: Junio C Hamano <gitster@pobox.com>,
git@vger.kernel.org, derrickstolee@github.com
Subject: Re: Changed path filter hash differs from murmur3 if char is signed
Date: Fri, 12 May 2023 17:27:55 -0400 [thread overview]
Message-ID: <ZF6vW7/BhKqUyP7R@nand.local> (raw)
In-Reply-To: <20230512205427.1090937-1-jonathantanmy@google.com>
On Fri, May 12, 2023 at 01:54:27PM -0700, Jonathan Tan wrote:
> > > I don't have statistics on this, but if the majority of repos have
> > > only <=0x7f filenames (which seems reasonable to me), this might save
> > > sufficient work that we can proceed with bumping the version number and
> > > ignoring old data.
> > >
> > >> Better yet, we should be able to reuse existing Bloom filter data for
> > >> paths that have all characters <=0xff, and only recompute them where
> >
> > "ff" -> "7f" I presume?
>
> That was my assumption too, but Taylor can clarify.
Sorry, yes, I meant "0x7f" here not "0xff". Thanks for catching, both.
Thanks,
Taylor
prev parent reply other threads:[~2023-05-12 21:28 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-11 22:40 Changed path filter hash differs from murmur3 if char is signed Jonathan Tan
2023-05-11 22:51 ` Junio C Hamano
2023-05-11 23:10 ` Taylor Blau
2023-05-12 17:33 ` Jonathan Tan
2023-05-12 19:42 ` Junio C Hamano
2023-05-12 20:54 ` Jonathan Tan
2023-05-12 21:27 ` Taylor Blau [this message]
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