- 19 5月, 2016 1 次提交
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由 Paolo Bonzini 提交于
Move it to the actual users. There are some inclusions of qemu/host-utils.h in headers, but they are all necessary. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 05 2月, 2016 1 次提交
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由 Peter Maydell 提交于
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Message-id: 1454089805-5470-16-git-send-email-peter.maydell@linaro.org
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- 11 9月, 2015 1 次提交
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由 Daniel P. Berrange 提交于
A number of files were including strings.h but not using any of the functions it provides Signed-off-by: NDaniel P. Berrange <berrange@redhat.com> Reviewed-by: NMarkus Armbruster <armbru@redhat.com> Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
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- 15 1月, 2015 2 次提交
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由 ChenLiang 提交于
Rebuild the cache_is_cached function by cache_get_by_addr. And drops the asserts because the caller is also asserting the same thing. Signed-off-by: NChenLiang <chenliang88@huawei.com> Signed-off-by: NGonglei <arei.gonglei@huawei.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: NAmit Shah <amit.shah@redhat.com>
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由 ChenLiang 提交于
Avoid hot pages being replaced by others to remarkably decrease cache misses Sample results with the test program which quote from xbzrle.txt ran in vm:(migrate bandwidth:1GE and xbzrle cache size 8MB) the test program: include <stdlib.h> include <stdio.h> int main() { char *buf = (char *) calloc(4096, 4096); while (1) { int i; for (i = 0; i < 4096 * 4; i++) { buf[i * 4096 / 4]++; } printf("."); } } before this patch: virsh qemu-monitor-command test_vm '{"execute": "query-migrate"}' {"return":{"expected-downtime":1020,"xbzrle-cache":{"bytes":1108284, "cache-size":8388608,"cache-miss-rate":0.987013,"pages":18297,"overflow":8, "cache-miss":1228737},"status":"active","setup-time":10,"total-time":52398, "ram":{"total":12466991104,"remaining":1695744,"mbps":935.559472, "transferred":5780760580,"dirty-sync-counter":271,"duplicate":2878530, "dirty-pages-rate":29130,"skipped":0,"normal-bytes":5748592640, "normal":1403465}},"id":"libvirt-706"} 18k pages sent compressed in 52 seconds. cache-miss-rate is 98.7%, totally miss. after optimizing: virsh qemu-monitor-command test_vm '{"execute": "query-migrate"}' {"return":{"expected-downtime":2054,"xbzrle-cache":{"bytes":5066763, "cache-size":8388608,"cache-miss-rate":0.485924,"pages":194823,"overflow":0, "cache-miss":210653},"status":"active","setup-time":11,"total-time":18729, "ram":{"total":12466991104,"remaining":3895296,"mbps":937.663549, "transferred":1615042219,"dirty-sync-counter":98,"duplicate":2869840, "dirty-pages-rate":58781,"skipped":0,"normal-bytes":1588404224, "normal":387794}},"id":"libvirt-266"} 194k pages sent compressed in 18 seconds. The value of cache-miss-rate decrease to 48.59%. Signed-off-by: NChenLiang <chenliang88@huawei.com> Signed-off-by: NGonglei <arei.gonglei@huawei.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NAmit Shah <amit.shah@redhat.com>
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- 10 6月, 2014 1 次提交
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由 Chen Gang 提交于
We call g_free() after cache_fini() in migration_end(), but we don't call it after cache_fini() in xbzrle_cache_resize(), leaking the memory. cache_init() and cache_fini() are a pair. Since cache_init() allocates the cache, let cache_fini() free it. This plugs the leak. Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
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- 25 2月, 2014 1 次提交
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由 Dr. David Alan Gilbert 提交于
Push zero'd pages into the XBZRLE cache A page that was cached by XBZRLE, zero'd and then XBZRLE'd again was being compared against a stale cache value Don't use 'qemu_put_buffer_async' to put pages from the XBZRLE cache Since the cache might change before the data hits the wire Signed-off-by: NDr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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- 04 2月, 2014 2 次提交
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由 Orit Wasserman 提交于
It is better to fail migration in case of failure to allocate new cache item Signed-off-by: NOrit Wasserman <owasserm@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Orit Wasserman 提交于
Signed-off-by: NOrit Wasserman <owasserm@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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- 18 5月, 2013 1 次提交
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由 Michael Tokarev 提交于
Some source files #include the same header more than once for no good reason. Remove second #includes in such cases. Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
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- 11 3月, 2013 4 次提交
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由 Peter Lieven 提交于
The page cache frees all data on finish, on resize and if there is collision on insert. So it should be the caches responsibility to dup the data that is stored in the cache. Signed-off-by: NPeter Lieven <pl@kamp.de> Signed-off-by: NOrit Wasserman <owasserm@redhat.com> Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Peter Lieven 提交于
XBZRLE encoded migration introduced a MRU page cache meachnism. Unfortunately, cached items where never freed in case of a collision in the page cache on cache_insert(). This lead to out of memory conditions during XBZRLE migration if the page cache was small and there where a lot of collisions in the cache. Signed-off-by: NPeter Lieven <pl@kamp.de> Signed-off-by: NOrit Wasserman <owasserm@redhat.com> Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Orit Wasserman 提交于
Instead of using cache_insert do the update itself Signed-off-by: NOrit Wasserman <owasserm@redhat.com> Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Orit Wasserman 提交于
Signed-off-by: NOrit Wasserman <owasserm@redhat.com> Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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- 19 12月, 2012 1 次提交
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 08 8月, 2012 1 次提交
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由 Orit Wasserman 提交于
Add MRU page cache mechanism. The page are accessed by their address. Signed-off-by: NBenoit Hudzia <benoit.hudzia@sap.com> Signed-off-by: NPetter Svard <petters@cs.umu.se> Signed-off-by: NAidan Shribman <aidan.shribman@sap.com> Signed-off-by: NOrit Wasserman <owasserm@redhat.com> Reviewed-by: NLuiz Capitulino <lcapitulino@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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