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| author | B. Watson <urchlay@slackware.uk> | 2025-11-26 07:39:39 -0500 |
|---|---|---|
| committer | B. Watson <urchlay@slackware.uk> | 2025-11-26 07:39:39 -0500 |
| commit | d3f6689328d52e5d236fbf0993d47d11905546f6 (patch) | |
| tree | b98bd4e138702595cfc2a87d7d16fabd4a711061 | |
| parent | 6603ee7739db9db34e3acf8bb3f4c6219fb50ee1 (diff) | |
| download | unalf-d3f6689328d52e5d236fbf0993d47d11905546f6.tar.gz | |
Update performance stuff in alf(1).
| -rw-r--r-- | src/alf.1 | 14 | ||||
| -rw-r--r-- | src/alf.rst | 14 |
2 files changed, 14 insertions, 14 deletions
@@ -101,14 +101,14 @@ a pathological case. A real Atari would take hours or even days to compress/decompress such files, and you\(aqd have to have a hard disk and a DOS capable of handling multi\-megabyte files... .sp -Performance is \fIhorrible\fP\&. This shouldn\(aqt be a real problem on modern -multi\-GHz CPU, especially since most Atari 8\-bit files are small -(usually under 64KB). Interestingly, it\(aqs not O(n^2), it scales -linearly, O(1): Compressing a 1.3MB text file takes 5 seconds on the +Performance is \fIhorrible\fP\&. This shouldn\(aqt be a real problem on +modern multi\-GHz CPU, especially since most Atari 8\-bit files are +small (usually under 64KB). Interestingly, it\(aqs not O(n^2), it scales +linearly, O(1): Compressing a 1.3MB text file takes 0.7 seconds on the author\(aqs (rather modest) Intel i7 workstation, and a file 10x as large -takes approximately 10x as long (50 seconds). A 50KB file takes 0.2 -seconds, which is more typical of the files you\(aqd actually use this -with. +takes approximately 10x as long (7 seconds). A 50KB file is almost +instantaneous, 0.5 seconds, which is more typical of the files you\(aqd +actually use this with. .sp The date/time stamps stored in the archive are the \fBmtime\fPs of the files (which is the same time \fBls\fP(1) shows, by default), and diff --git a/src/alf.rst b/src/alf.rst index 0968d68..ea3db39 100644 --- a/src/alf.rst +++ b/src/alf.rst @@ -88,14 +88,14 @@ a pathological case. A real Atari would take hours or even days to compress/decompress such files, and you'd have to have a hard disk and a DOS capable of handling multi-megabyte files... -Performance is *horrible*. This shouldn't be a real problem on modern -multi-GHz CPU, especially since most Atari 8-bit files are small -(usually under 64KB). Interestingly, it's not O(n^2), it scales -linearly, O(1): Compressing a 1.3MB text file takes 5 seconds on the +Performance is *horrible*. This shouldn't be a real problem on +modern multi-GHz CPU, especially since most Atari 8-bit files are +small (usually under 64KB). Interestingly, it's not O(n^2), it scales +linearly, O(1): Compressing a 1.3MB text file takes 0.7 seconds on the author's (rather modest) Intel i7 workstation, and a file 10x as large -takes approximately 10x as long (50 seconds). A 50KB file takes 0.2 -seconds, which is more typical of the files you'd actually use this -with. +takes approximately 10x as long (7 seconds). A 50KB file is almost +instantaneous, 0.5 seconds, which is more typical of the files you'd +actually use this with. The date/time stamps stored in the archive are the **mtime**\s of the files (which is the same time **ls**\(1) shows, by default), and |
