The thread pool helps increase the number of requests in flight when used with
storage that has a higher latency. However, it has an overhead, and so for
fast, low latency filesystems, it may be best to turn it off. ( :since:`Since 8.5.0` )
- Element ``rlimit_profile`` accepts one attribute ``size`` which defines the
+ Element ``openfiles`` accepts one attribute ``max`` which defines the
maximum number of file descriptors. Non-positive values are forbidden.
- Although numbers greater than 1M are allowed, the virtiofsd documentation
- states that in this case its set by virtiofsd to the 1M. ( :since:`Since 10.6.0` )
+ The upper bound on the number of open files is implementation defined.
+ ( :since:`Since 10.6.0` )
``source``
The resource on the host that is being accessed in the guest. The ``name``
attribute must be used with ``type='template'``, and the ``dir`` attribute
g_autofree char *queue_size = virXPathString("string(./driver/@queue)", ctxt);
g_autofree char *binary = virXPathString("string(./binary/@path)", ctxt);
g_autofree char *thread_pool_size = virXPathString("string(./binary/thread_pool/@size)", ctxt);
- g_autofree char *rlimit_nofile = virXPathString("string(./binary/rlimit_nofile/@size)", ctxt);
+ g_autofree char *openfiles = virXPathString("string(./binary/openfiles/@max)", ctxt);
xmlNodePtr binary_node = virXPathNode("./binary", ctxt);
xmlNodePtr binary_lock_node = virXPathNode("./binary/lock", ctxt);
xmlNodePtr binary_cache_node = virXPathNode("./binary/cache", ctxt);
goto error;
}
- if (rlimit_nofile &&
- virStrToLong_ull(rlimit_nofile, NULL, 10, &def->rlimit_nofile) < 0) {
+ if (openfiles &&
+ virStrToLong_ull(openfiles, NULL, 10, &def->openfiles) < 0) {
virReportError(VIR_ERR_XML_ERROR,
- _("cannot parse rlimit_nofile '%1$s' for virtiofs"),
- rlimit_nofile);
+ _("cannot parse openfiles '%1$s' for virtiofs"),
+ openfiles);
goto error;
}
if (def->thread_pool_size >= 0)
virBufferAsprintf(&binaryBuf, "<thread_pool size='%d'/>\n", def->thread_pool_size);
- if (def->rlimit_nofile > 0)
- virBufferAsprintf(&binaryBuf, "<rlimit_nofile size='%lld'/>\n", def->rlimit_nofile);
+ if (def->openfiles > 0)
+ virBufferAsprintf(&binaryBuf, "<openfiles max='%lld'/>\n", def->openfiles);
}
bool symlinksResolved;
char *binary;
unsigned long long queue_size;
- unsigned long long rlimit_nofile;
+ unsigned long long openfiles;
virTristateSwitch xattr;
virDomainFSCacheMode cache;
virTristateSwitch posix_lock;
</element>
</optional>
<optional>
- <element name="rlimit_nofile">
+ <element name="openfiles">
<optional>
- <attribute name="size">
+ <attribute name="max">
<data type="positiveInteger"/>
</attribute>
</optional>
if (fs->thread_pool_size >= 0)
virCommandAddArgFormat(cmd, "--thread-pool-size=%i", fs->thread_pool_size);
- if (fs->rlimit_nofile > 0)
- virCommandAddArgFormat(cmd, "--rlimit-nofile=%llu", fs->rlimit_nofile);
+ if (fs->openfiles > 0)
+ virCommandAddArgFormat(cmd, "--rlimit-nofile=%llu", fs->openfiles);
if (cfg->virtiofsdDebug) {
if (virBitmapIsBitSet(fs->caps, QEMU_VHOST_USER_FS_FEATURE_SEPARATE_OPTIONS))
--- /dev/null
+vhost-user-fs-fd-openfiles.xml
\ No newline at end of file
<cache mode='always'/>
<sandbox mode='chroot'/>
<thread_pool size='16'/>
- <rlimit_nofile size='122333'/>
+ <openfiles max='122333'/>
</binary>
<idmap>
<uid start='0' target='100000' count='65535'/>
+++ /dev/null
-vhost-user-fs-fd-rlimit.xml
\ No newline at end of file
DO_TEST_CAPS_ARCH_LATEST("launch-security-s390-pv", "s390x");
DO_TEST_CAPS_LATEST("vhost-user-fs-fd-memory");
- DO_TEST_CAPS_LATEST("vhost-user-fs-fd-rlimit");
+ DO_TEST_CAPS_LATEST("vhost-user-fs-fd-openfiles");
DO_TEST_CAPS_LATEST("vhost-user-fs-hugepages");
DO_TEST_CAPS_LATEST_PARSE_ERROR("vhost-user-fs-readonly");