Hi,
I have already asked about this few months back:
http://mail.opensolaris.org/pipermail/pkg-discuss/2008-March/002217.html
There is an script which shows how the description are taken from the
manifest file. To get GUI up and running we need to have descriptions
for *all* packages, so currently this is quite long task, more then that
this is even longer if the manifests are not in the local catalog.
The acceptable time for such option would be less then 1 seconds which
is far from what is now. Currently each time user starts GUI the number
of opened manifest files is the number of all packages, just to get
description, that is why I think (I might be wrong) that caching this
kind of information will give huge performance improvement.
If you have any other suggestions I would be very happy to go other then
caching way.
The bug 243 should cover this as Danek wrote in that thread:
http://defect.opensolaris.org/bz/show_bug.cgi?id=243
I am attaching dtrace script which shows opened and written files (O/W)
running this script together with the script attached in the e-mail
from March would give information how much files needs to be opened and
how slow is getting description information.
./print_changes.d /path/to/the/ips/catalog
best
Michal Pryc
[EMAIL PROTECTED] wrote:
It seems as though you're putting the cart before the horse. The
performance of manifest operations may not be optimal; however, until we
evaluate those problems it's premature to conclude that caching is the
solution.
Have you filed a bug for the performance problems that you're seeing?
It should include information about how you're accessing the manifests,
what operations you're performing, and what performance results you're
seeing. Provide as many details as you can.
Thanks,
-j
On Wed, Jun 04, 2008 at 10:05:01AM +0100, Michal Pryc wrote:
Hello,
I am currently looking on the improving performance of the GUI for IPS
(packagemanager) and I would really happy if someone could give me
information about plans for caching manifest files in the IPS.
The biggest bottleneck is to get information from manifest files for all
packages (for example description) and I am looking forward to hear if
we should implement something in the GUI or this will be part of the IPS.
all the best
Michal Pryc
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#!/usr/sbin/dtrace -s
#pragma D option quiet
/*
* This script check for the changes and prints them
* to use with the backup.sh script
* dtrace -s print_changes.d -o output
* and than run backup.sh /directory/for/backup
*/
syscall::open*:return
/ strstr(fds[arg1].fi_pathname, $$1 ) != NULL && arg1 >=0 /
{
printf("O %s\n", stringof(fds[arg1].fi_pathname));
}
fbt::fop_remove:entry
/ strstr(stringof(args[0]->v_path), $$1 ) != NULL /
{
self->dir = stringof(args[0]->v_path);
self->file = stringof(args[1]);
}
fbt::fop_remove:return
/ self->file != NULL /
{
printf("U %s/%s\n", self->dir, self->file);
self->file = 0;
self->dir = 0;
}
syscall::write*:entry
/ (self->str = strstr(fds[arg0].fi_pathname, $$1 )) != NULL /
{
}
syscall::write*:return
/ self->str != NULL /
{
printf("W %s\n", self->str);
self->str = 0;
}
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