[libvirt] [PATCH] vmx: Support persistent CPU shares
Daniel Veillard
veillard at redhat.com
Mon Apr 4 03:05:41 UTC 2011
On Sun, Apr 03, 2011 at 02:43:55PM +0200, Matthias Bolte wrote:
> ---
> src/vmx/vmx.c | 43 ++++++++++++++++++++++
> tests/vmx2xmldata/vmx2xml-case-insensitive-1.vmx | 2 +-
> tests/vmx2xmldata/vmx2xml-case-insensitive-1.xml | 3 ++
> tests/vmx2xmldata/vmx2xml-case-insensitive-2.xml | 3 ++
> tests/vmx2xmldata/vmx2xml-esx-in-the-wild-1.vmx | 2 +-
> tests/vmx2xmldata/vmx2xml-esx-in-the-wild-1.xml | 3 ++
> tests/vmx2xmldata/vmx2xml-esx-in-the-wild-4.xml | 3 ++
> tests/vmx2xmldata/vmx2xml-esx-in-the-wild-5.xml | 3 ++
> tests/xml2vmxdata/xml2vmx-esx-in-the-wild-1.vmx | 1 +
> tests/xml2vmxdata/xml2vmx-esx-in-the-wild-1.xml | 3 ++
> tests/xml2vmxdata/xml2vmx-esx-in-the-wild-4.vmx | 1 +
> tests/xml2vmxdata/xml2vmx-esx-in-the-wild-4.xml | 3 ++
> tests/xml2vmxdata/xml2vmx-esx-in-the-wild-5.vmx | 1 +
> tests/xml2vmxdata/xml2vmx-esx-in-the-wild-5.xml | 3 ++
> 14 files changed, 72 insertions(+), 2 deletions(-)
>
> diff --git a/src/vmx/vmx.c b/src/vmx/vmx.c
> index 9a482ef..b0d3218 100644
> --- a/src/vmx/vmx.c
> +++ b/src/vmx/vmx.c
> @@ -55,6 +55,8 @@ def->mem.cur_balloon = <value kilobyte> <=> sched.mem.max = "<value megabyt
> def->mem.min_guarantee = <value kilobyte> <=> sched.mem.minsize = "<value megabyte>" # defaults to 0
> def->maxvcpus = <value> <=> numvcpus = "<value>" # must be 1 or a multiple of 2, defaults to 1
> def->cpumask = <uint list> <=> sched.cpu.affinity = "<uint list>"
> +def->cputune.shares = <value> <=> sched.cpu.shares = "<value>" # with handling for special values
> + # "high", "normal", "low"
>
>
>
> @@ -1200,6 +1202,7 @@ virVMXParseConfig(virVMXContext *ctx, virCapsPtr caps, const char *vmx)
> long long sched_mem_minsize = 0;
> long long numvcpus = 0;
> char *sched_cpu_affinity = NULL;
> + char *sched_cpu_shares = NULL;
> char *guestOS = NULL;
> bool smbios_reflecthost = false;
> int controller;
> @@ -1449,6 +1452,30 @@ virVMXParseConfig(virVMXContext *ctx, virCapsPtr caps, const char *vmx)
> }
> }
>
> + /* vmx:sched.cpu.shares -> def:cputune.shares */
> + if (virVMXGetConfigString(conf, "sched.cpu.shares", &sched_cpu_shares,
> + true) < 0) {
> + goto cleanup;
> + }
> +
> + if (sched_cpu_shares != NULL) {
> + /* See http://www.vmware.com/support/developer/vc-sdk/visdk41pubs/ApiReference/vim.SharesInfo.Level.html */
> + if (STRCASEEQ(sched_cpu_shares, "low")) {
> + def->cputune.shares = def->vcpus * 500;
> + } else if (STRCASEEQ(sched_cpu_shares, "normal")) {
> + def->cputune.shares = def->vcpus * 1000;
> + } else if (STRCASEEQ(sched_cpu_shares, "high")) {
> + def->cputune.shares = def->vcpus * 2000;
> + } else if (virStrToLong_ul(sched_cpu_shares, NULL, 10,
> + &def->cputune.shares) < 0) {
> + VMX_ERROR(VIR_ERR_INTERNAL_ERROR,
> + _("Expecting VMX entry 'sched.cpu.shares' to be an "
> + "unsigned integer or 'low', 'normal' or 'high' but "
> + "found '%s'"), sched_cpu_shares);
> + goto cleanup;
> + }
> + }
> +
> /* def:lifecycle */
> def->onReboot = VIR_DOMAIN_LIFECYCLE_RESTART;
> def->onPoweroff = VIR_DOMAIN_LIFECYCLE_DESTROY;
> @@ -1715,6 +1742,7 @@ virVMXParseConfig(virVMXContext *ctx, virCapsPtr caps, const char *vmx)
> virConfFree(conf);
> VIR_FREE(encoding);
> VIR_FREE(sched_cpu_affinity);
> + VIR_FREE(sched_cpu_shares);
> VIR_FREE(guestOS);
>
> return def;
> @@ -2998,6 +3026,21 @@ virVMXFormatConfig(virVMXContext *ctx, virCapsPtr caps, virDomainDefPtr def,
> virBufferAddLit(&buffer, "\"\n");
> }
>
> + /* def:cputune.shares -> vmx:sched.cpu.shares */
> + if (def->cputune.shares > 0) {
> + /* See http://www.vmware.com/support/developer/vc-sdk/visdk41pubs/ApiReference/vim.SharesInfo.Level.html */
> + if (def->cputune.shares == def->vcpus * 500) {
> + virBufferAddLit(&buffer, "sched.cpu.shares = \"low\"\n");
> + } else if (def->cputune.shares == def->vcpus * 1000) {
> + virBufferAddLit(&buffer, "sched.cpu.shares = \"normal\"\n");
> + } else if (def->cputune.shares == def->vcpus * 2000) {
> + virBufferAddLit(&buffer, "sched.cpu.shares = \"high\"\n");
> + } else {
> + virBufferVSprintf(&buffer, "sched.cpu.shares = \"%lu\"\n",
> + def->cputune.shares);
> + }
> + }
> +
> /* def:graphics */
> for (i = 0; i < def->ngraphics; ++i) {
> switch (def->graphics[i]->type) {
> diff --git a/tests/vmx2xmldata/vmx2xml-case-insensitive-1.vmx b/tests/vmx2xmldata/vmx2xml-case-insensitive-1.vmx
> index bd36cf8..8641c5c 100644
> --- a/tests/vmx2xmldata/vmx2xml-case-insensitive-1.vmx
> +++ b/tests/vmx2xmldata/vmx2xml-case-insensitive-1.vmx
> @@ -35,7 +35,7 @@ UUID.BIOS = "50 11 5E 16 9B DC 49 D7-F1 71 53 C4 D7 F9 17 10"
> SNAPSHOT.ACTION = "KEEP"
> SCHED.CPU.MIN = "0"
> SCHED.CPU.UNITS = "MHZ"
> -SCHED.CPU.SHARES = "NORMAL"
> +SCHED.CPU.SHARES = "4223"
> SCHED.MEM.MINSIZE = "0"
> SCHED.MEM.SHARES = "NORMAL"
> TOOLSCRIPTS.AFTERPOWERON = "TRUE"
> diff --git a/tests/vmx2xmldata/vmx2xml-case-insensitive-1.xml b/tests/vmx2xmldata/vmx2xml-case-insensitive-1.xml
> index 7a5ff5b..ef6edd8 100644
> --- a/tests/vmx2xmldata/vmx2xml-case-insensitive-1.xml
> +++ b/tests/vmx2xmldata/vmx2xml-case-insensitive-1.xml
> @@ -4,6 +4,9 @@
> <memory>1048576</memory>
> <currentMemory>1048576</currentMemory>
> <vcpu>1</vcpu>
> + <cputune>
> + <shares>4223</shares>
> + </cputune>
> <os>
> <type arch='i686'>hvm</type>
> </os>
> diff --git a/tests/vmx2xmldata/vmx2xml-case-insensitive-2.xml b/tests/vmx2xmldata/vmx2xml-case-insensitive-2.xml
> index 18d6461..02771b9 100644
> --- a/tests/vmx2xmldata/vmx2xml-case-insensitive-2.xml
> +++ b/tests/vmx2xmldata/vmx2xml-case-insensitive-2.xml
> @@ -4,6 +4,9 @@
> <memory>1048576</memory>
> <currentMemory>1048576</currentMemory>
> <vcpu>1</vcpu>
> + <cputune>
> + <shares>1000</shares>
> + </cputune>
> <os>
> <type arch='i686'>hvm</type>
> </os>
> diff --git a/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-1.vmx b/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-1.vmx
> index 4392062..78741ae 100644
> --- a/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-1.vmx
> +++ b/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-1.vmx
> @@ -36,7 +36,7 @@ uuid.bios = "50 11 5e 16 9b dc 49 d7-f1 71 53 c4 d7 f9 17 10"
> snapshot.action = "keep"
> sched.cpu.min = "0"
> sched.cpu.units = "mhz"
> -sched.cpu.shares = "normal"
> +sched.cpu.shares = "low"
> sched.mem.minsize = "0"
> sched.mem.shares = "normal"
> toolScripts.afterPowerOn = "true"
> diff --git a/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-1.xml b/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-1.xml
> index 5e67e74..e8f9307 100644
> --- a/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-1.xml
> +++ b/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-1.xml
> @@ -4,6 +4,9 @@
> <memory>1048576</memory>
> <currentMemory>1048576</currentMemory>
> <vcpu>1</vcpu>
> + <cputune>
> + <shares>500</shares>
> + </cputune>
> <os>
> <type arch='i686'>hvm</type>
> </os>
> diff --git a/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-4.xml b/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-4.xml
> index 419df51..2824d66 100644
> --- a/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-4.xml
> +++ b/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-4.xml
> @@ -4,6 +4,9 @@
> <memory>524288</memory>
> <currentMemory>524288</currentMemory>
> <vcpu>1</vcpu>
> + <cputune>
> + <shares>1000</shares>
> + </cputune>
> <os>
> <type arch='i686'>hvm</type>
> </os>
> diff --git a/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-5.xml b/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-5.xml
> index 0040163..6f0a9d1 100644
> --- a/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-5.xml
> +++ b/tests/vmx2xmldata/vmx2xml-esx-in-the-wild-5.xml
> @@ -8,6 +8,9 @@
> <min_guarantee>262144</min_guarantee>
> </memtune>
> <vcpu>2</vcpu>
> + <cputune>
> + <shares>2000</shares>
> + </cputune>
> <os>
> <type arch='x86_64'>hvm</type>
> </os>
> diff --git a/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-1.vmx b/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-1.vmx
> index e72ca80..9059197 100644
> --- a/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-1.vmx
> +++ b/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-1.vmx
> @@ -6,6 +6,7 @@ uuid.bios = "50 11 5e 16 9b dc 49 d7-f1 71 53 c4 d7 f9 17 10"
> displayName = "Fedora11"
> memsize = "1024"
> numvcpus = "1"
> +sched.cpu.shares = "low"
> scsi0.present = "true"
> scsi0.virtualDev = "lsilogic"
> scsi0:0.present = "true"
> diff --git a/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-1.xml b/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-1.xml
> index 3f4ff88..ea59778 100644
> --- a/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-1.xml
> +++ b/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-1.xml
> @@ -4,6 +4,9 @@
> <memory>1048576</memory>
> <currentMemory>1048576</currentMemory>
> <vcpu>1</vcpu>
> + <cputune>
> + <shares>500</shares>
> + </cputune>
> <os>
> <type>hvm</type>
> </os>
> diff --git a/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-4.vmx b/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-4.vmx
> index 627fcfb..504997f 100644
> --- a/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-4.vmx
> +++ b/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-4.vmx
> @@ -6,6 +6,7 @@ uuid.bios = "56 4d 9b ef ac d9 b4 e0-c8 f0 ae a8 b9 10 35 15"
> displayName = "virtMonServ1"
> memsize = "512"
> numvcpus = "1"
> +sched.cpu.shares = "normal"
> scsi0.present = "true"
> scsi0.virtualDev = "lsilogic"
> scsi0:0.present = "true"
> diff --git a/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-4.xml b/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-4.xml
> index 078753a..443aacd 100644
> --- a/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-4.xml
> +++ b/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-4.xml
> @@ -4,6 +4,9 @@
> <memory>524288</memory>
> <currentMemory>524288</currentMemory>
> <vcpu>1</vcpu>
> + <cputune>
> + <shares>1000</shares>
> + </cputune>
> <os>
> <type>hvm</type>
> </os>
> diff --git a/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-5.vmx b/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-5.vmx
> index cc2485f..2e3b856 100644
> --- a/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-5.vmx
> +++ b/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-5.vmx
> @@ -8,6 +8,7 @@ annotation = "Centos 5.5 64bit Server"
> memsize = "2048"
> sched.mem.minsize = "256"
> numvcpus = "2"
> +sched.cpu.shares = "normal"
> scsi0.present = "true"
> scsi0.virtualDev = "lsilogic"
> scsi0:0.present = "true"
> diff --git a/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-5.xml b/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-5.xml
> index d55bf6b..f28c15e 100644
> --- a/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-5.xml
> +++ b/tests/xml2vmxdata/xml2vmx-esx-in-the-wild-5.xml
> @@ -8,6 +8,9 @@
> <min_guarantee>262144</min_guarantee>
> </memtune>
> <vcpu>2</vcpu>
> + <cputune>
> + <shares>2000</shares>
> + </cputune>
> <os>
> <type arch='x86_64'>hvm</type>
> </os>
ACK, while nice, it may be a bit late for 0.9.0, okay to wait for the
next cycle ? We already have this for xen and qemu, seeing it for ESX
confirms the design is fine, which is the most important from my point
of vue :-)
Daniel
--
Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/
daniel at veillard.com | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library http://libvirt.org/
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