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...; > - } > + offset = obj_idx * class->size; so we already know the `offset' before we call objidx_to_page_and_offset(), thus we can drop `struct size_class *class' and `obj_idx', and pass `long obj_offset' (which is `obj_idx * class->size') instead, right? we also _may be_ can return `cursor' from the function. static struct page *objidx_to_page_and_offset(struct page *first_page, unsigned long obj_offset, unsigned long *offset_in_page); this can save ~20 instructions, which is not so terrible for a hot path like obj_malloc(). what do you think?...

...; > - } > + offset = obj_idx * class->size; so we already know the `offset' before we call objidx_to_page_and_offset(), thus we can drop `struct size_class *class' and `obj_idx', and pass `long obj_offset' (which is `obj_idx * class->size') instead, right? we also _may be_ can return `cursor' from the function. static struct page *objidx_to_page_and_offset(struct page *first_page, unsigned long obj_offset, unsigned long *offset_in_page); this can save ~20 instructions, which is not so terrible for a hot path like obj_malloc(). what do you think?...

...t/lda May 19 14:32:30 whale deliver(pawel): Module loaded: /usr/lib64/dovecot/lda/lib90_cmusieve_plugin.so May 19 14:32:30 whale deliver(pawel): maildir: data=/home/pawel/Maildir May 19 14:32:30 whale deliver(pawel): maildir++: root=/home/pawel/Maildir, index=, control=, inbox=/home/pawel/Maildir _May 19 14:32:30 whale deliver(pawel): cmusieve: Using sieve path: /home/pawel/.dovecot.sieve May 19 14:32:30 whale deliver(pawel): cmusieve: Executing script /home/pawel/.dovecot.sievec_ May 19 14:32:30 whale deliver(pawel): msgid=<20090519133229.725F08F95500 at whale.hindhead.local>: saved ma...

...;silent deflation"). Guests may benefit from silent deflate by aggressively inflating the balloon; they know that they will be able to use ballooned pages without issuing a (blocking) request to the device. The problem is that this feature is a "negative" feature: if set, the guest _may not_ use ballooned pages directly. Negative features are not safe against migration; here is an explanation why this is so. For a "positive" feature, migration is possible if the destination supports it, or the source didn't set it: dest support source set ok?...

...;silent deflation"). Guests may benefit from silent deflate by aggressively inflating the balloon; they know that they will be able to use ballooned pages without issuing a (blocking) request to the device. The problem is that this feature is a "negative" feature: if set, the guest _may not_ use ballooned pages directly. Negative features are not safe against migration; here is an explanation why this is so. For a "positive" feature, migration is possible if the destination supports it, or the source didn't set it: dest support source set ok?...

...scribe yourself (or <address> if specified) to the named <list>. unsubscribe [<list>] [<address>] Unsubscribe yourself (or <address> if specified) from the named <list>. "unsubscribe *" will remove you (or <address>) from all lists. This _may not_ work if you have subscribed using multiple addresses. get [<list>] <filename> Get a file related to <list>. index [<list>] Return an index of files you can "get" for <list>. which [<address>] Find out which lists you...

...scribe yourself (or <address> if specified) to the named <list>. unsubscribe [<list>] [<address>] Unsubscribe yourself (or <address> if specified) from the named <list>. "unsubscribe *" will remove you (or <address>) from all lists. This _may not_ work if you have subscribed using multiple addresses. get [<list>] <filename> Get a file related to <list>. index [<list>] Return an index of files you can "get" for <list>. which [<address>] Find out which lists you...

...ubscribe yourself (or <address> if specified) to the named <list>. unsubscribe <list> [<address>] Unsubscribe yourself (or <address> if specified) from the named <list>. "unsubscribe *" will remove you (or <address>) from all lists. This _may not_ work if you have subscribed using multiple addresses. get <list> <filename> Get a file related to <list>. index <list> Return an index of files you can "get" for <list>. which [<address>] Find out which lists you (or...

...ubscribe yourself (or <address> if specified) to the named <list>. unsubscribe <list> [<address>] Unsubscribe yourself (or <address> if specified) from the named <list>. "unsubscribe *" will remove you (or <address>) from all lists. This _may not_ work if you have subscribed using multiple addresses. get <list> <filename> Get a file related to <list>. index <list> Return an index of files you can "get" for <list>. which [<address>] Find out which lists you (or...

...ubscribe yourself (or <address> if specified) to the named <list>. unsubscribe <list> [<address>] Unsubscribe yourself (or <address> if specified) from the named <list>. "unsubscribe *" will remove you (or <address>) from all lists. This _may not_ work if you have subscribed using multiple addresses. get <list> <filename> Get a file related to <list>. index <list> Return an index of files you can "get" for <list>. which [<address>] Find out which lists you (or...

...ubscribe yourself (or <address> if specified) to the named <list>. unsubscribe <list> [<address>] Unsubscribe yourself (or <address> if specified) from the named <list>. "unsubscribe *" will remove you (or <address>) from all lists. This _may not_ work if you have subscribed using multiple addresses. get <list> <filename> Get a file related to <list>. index <list> Return an index of files you can "get" for <list>. which [<address>] Find out which lists you (or...

...ubscribe yourself (or <address> if specified) to the named <list>. unsubscribe <list> [<address>] Unsubscribe yourself (or <address> if specified) from the named <list>. "unsubscribe *" will remove you (or <address>) from all lists. This _may not_ work if you have subscribed using multiple addresses. get <list> <filename> Get a file related to <list>. index <list> Return an index of files you can "get" for <list>. which [<address>] Find out which lists you (or...

...ubscribe yourself (or <address> if specified) to the named <list>. unsubscribe <list> [<address>] Unsubscribe yourself (or <address> if specified) from the named <list>. "unsubscribe *" will remove you (or <address>) from all lists. This _may not_ work if you have subscribed using multiple addresses. get <list> <filename> Get a file related to <list>. index <list> Return an index of files you can "get" for <list>. which [<address>] Find out which lists you (or...

...ubscribe yourself (or <address> if specified) to the named <list>. unsubscribe <list> [<address>] Unsubscribe yourself (or <address> if specified) from the named <list>. "unsubscribe *" will remove you (or <address>) from all lists. This _may not_ work if you have subscribed using multiple addresses. get <list> <filename> Get a file related to <list>. index <list> Return an index of files you can "get" for <list>. which [<address>] Find out which lists you (or...

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello Everyone, On October 31st, FreeBSD 5.3 and FreeBSD 5.4 will have reached their End of Life and will no longer be supported by the FreeBSD Security Team. Users of either of those FreeBSD releases are strongly encouraged to upgrade to FreeBSD 5.5 or FreeBSD 6.1 before that date. In addition, the FreeBSD 6.0 End of Life is presently scheduled

Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.

Recently, I got many reports about perfermance degradation in embedded system(Android mobile phone, webOS TV and so on) and failed to fork easily. The problem was fragmentation caused by zram and GPU driver pages. Their pages cannot be migrated so compaction cannot work well, either so reclaimer ends up shrinking all of working set pages. It made system very slow and even to fail to fork easily.