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@@ -99,6 +99,7 @@ please let me know.
/etc/group as I have with libc5 ?
2.27. What needs to be recompiled when upgrading from glibc 2.0 to glibc
2.1?
+2.28. Why is extracting files via tar so slow?
3. Source and binary incompatibilities, and what to do about them
@@ -1043,6 +1044,21 @@ possible to do development with old static libraries on a glibc 2.1
system. This add-on is still in development. You can get it from <URL>
but please keep in mind that it is experimental.
+
+2.28. Why is extracting files via tar so slow?
+
+{AJ} Extracting of tar archives might be quite slow since tar has to look up
+userid and groupids and doesn't cache negative results. If you have nis or
+nisplus in your /etc/nsswitch.conf for the passwd and/or group database,
+each file extractions needs a network connection. There are two possible
+solutions:
+
+- do you really need NIS/NIS+ (some Linux distributions add by default
+ nis/nisplus even if it's not needed)? If not, just remove the entries.
+
+- if you need NIS/NIS+, use the Name Service Cache Daemon nscd that comes
+ with glibc 2.1.
+
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